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Djurdjevic D, Todorovic J, Terzic-Supic Z, Piperac P. Factors Associated with PA Level during the COVID-19 Outbreak in Serbia. P R Health Sci J 2022; 41:63-67. [PMID: 35704523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE The novel coronavirus (SARS-CoV-2) has had an influence on almost the entire world and has become a major public health problem. Many countries have introduced measures that restrict the movement of the population and that may negatively influence the physical activity (PA) levels. The aim of this study was to examine the factors associated with changes in PA in Serbia during the COVID-19 outbreak. METHODS The cross-sectional study was conducted from the 9th through the 13th of April 2020. A total of 340 people, all contacted using Viber, were invited to participate in the study. The study instrument was a questionnaire that gathered information regarding social characteristics, PA during the outbreak, PA before the outbreak, and fear of COVID-19. RESULTS A total of 50 participants (14.7%) had low levels of PA in the 7 days prior to the study, while 133 (39.1%) had moderate and 106 (31.2%) had high levels of PA. The participants with high levels of PA had significantly higher energy expenditures before than after the COVID-19 outbreak (P < .001). There were no significant differences between the participants with different levels of PA in the scores on the Fear of COVID-19 scale (low: 13.4 ± 5.2; moderate: 12.6 ± 4.4; high: 13.8 ± 5.5; P = .204). CONCLUSION One-sixth of the participants had low PA levels, and as restrictive measures are still in place in many countries, the lack of PA in high proportions of the general population may cause significant public health concerns.
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Affiliation(s)
- Dragan Djurdjevic
- Department of Sports Medicine, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Jovana Todorovic
- Institute of Social Medicine, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Zorica Terzic-Supic
- Institute of Social Medicine, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Pavle Piperac
- Department of Humanities, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
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Djuric A, Begic A, Gobeljic B, Pantelic A, Zebic G, Stevanovic I, Djurdjevic D, Ninkovic M, Prokic V, Stanojevic I, Vojvodic D, Djukic M. Subacute alcohol and/or disulfiram intake affects bioelements and redox status in rat testes. Food Chem Toxicol 2017; 105:44-51. [PMID: 28344087 DOI: 10.1016/j.fct.2017.03.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/09/2017] [Accepted: 03/22/2017] [Indexed: 11/26/2022]
Abstract
The aim of the study was to investigate if alcohol and disulfiram (DSF) individually and in combination affect bioelements' and red-ox homeostasis in testes of the exposed rats. The animals were divided into groups according to the duration of treatments (21 and/or 42 days): C21/C42 groups (controls); OL21 and OL22-42 groups (0.5 mL olive oil intake); A1-21 groups (3 mL 20% ethanol intake); DSF1-21 groups (178.5 mg DSF/kg/day intake); and A21+DSF22-42 groups (the DSF ingestion followed previous 21 days' treatment with alcohol). The measured parameters in testes included metals: zinc (Zn), copper (Cu), iron (Fe), magnesium (Mg) and selenium (Se); as well as oxidative stress (OS) parameters: superoxide anion radical (O2•-), glutathione reduced (GSH) and oxidized (GSSG), malondialdehyde (MDA), hydrogen peroxide (H2O2) decomposition and activities of total superoxide dismutase (tSOD), glutathione-S-transferase (GST) and glutathione reductase (GR). Metal status was changed in all experimental groups (Fe rose, Zn fell, while Cu increased in A21+DSF24-32 groups). Development of OS was demonstrated in A1-21 groups, but not in DSF1-21 groups. In A21+DSF22-42 groups, OS was partially reduced compared to A groups (A1-21>MDA>C; A1-21<GSH<C). High metal-binding affinity of DSF/DDTC changes red-ox homeostasis in rat testes.
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Affiliation(s)
- Ana Djuric
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Aida Begic
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Borko Gobeljic
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Ana Pantelic
- Department for Applied Chemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Goran Zebic
- Department for Food Technology, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade-Zemun, Serbia
| | - Ivana Stevanovic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Dragan Djurdjevic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Milica Ninkovic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Vera Prokic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Ivan Stanojevic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Danilo Vojvodic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Mirjana Djukic
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
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Begic A, Djuric A, Ninkovic M, Stevanovic I, Djurdjevic D, Pavlovic M, Jelic K, Pantelic A, Zebic G, Dejanovic B, Stanojevic I, Vojvodic D, Milosavljevic P, Djukic M, Saso L. Disulfiram moderately restores impaired hepatic redox status of rats subchronically exposed to cadmium. J Enzyme Inhib Med Chem 2017; 32:478-489. [PMID: 28102089 PMCID: PMC6010100 DOI: 10.1080/14756366.2016.1261132] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Examination of cadmium (Cd) toxicity and disulfiram (DSF) effect on liver was focused on oxidative stress (OS), bioelements status, morphological and functional changes. Male Wistar rats were intraperitoneally treated with 1 mg CdCl2/kg BW/day; orally with 178.5 mg DSF/kg BW/day for 1, 3, 10 and 21 days; and co-exposed from 22nd to 42nd day. The co-exposure nearly restored previously suppressed total superoxide dismutase (SOD), catalase (CAT) and increased glutathione peroxidase (GPx) activities; increased previously reduced glutathione reductase (GR) and total glutathione-S-transferase (GST) activities; reduced previously increased superoxide anion radical (O2·−) and malondialdehyde (MDA) levels; increased zinc (Zn) and iron (Fe), and decreased copper (Cu) (yet above control value), while magnesium (Mg) was not affected; and decreased serum alanine aminotransferases (ALT) levels. Histopathological examination showed signs of inflammation process as previously demonstrated by exposure to Cd. Overall, we ascertained partial liver redox status improvement, compared with the formerly Cd-induced impact.
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Affiliation(s)
- Aida Begic
- a Department for Toxicology "Akademik Danilo Soldatović", Faculty of Pharmacy , University of Belgrade , Belgrade , Serbia
| | - Ana Djuric
- a Department for Toxicology "Akademik Danilo Soldatović", Faculty of Pharmacy , University of Belgrade , Belgrade , Serbia
| | - Milica Ninkovic
- b Institute for Medical Research, Military Medical Academy , Belgrade , Serbia
| | - Ivana Stevanovic
- b Institute for Medical Research, Military Medical Academy , Belgrade , Serbia
| | - Dragan Djurdjevic
- b Institute for Medical Research, Military Medical Academy , Belgrade , Serbia
| | - Milos Pavlovic
- c Department for Reproduction, Fertility and Artificial Insemination, Faculty of Veterinarian Medicine , University of Belgrade , Belgrade , Serbia
| | - Katarina Jelic
- d Department for Pathology and Forensic Medicine , Military Medical Academy , Belgrade , Serbia
| | - Ana Pantelic
- e Department for Applied Chemistry, Faculty of Chemistry , University of Belgrade , Belgrade , Serbia
| | - Goran Zebic
- f Department for Food Technology, Faculty of Agriculture , University of Belgrade , Belgrade , Serbia
| | | | - Ivan Stanojevic
- b Institute for Medical Research, Military Medical Academy , Belgrade , Serbia
| | - Danilo Vojvodic
- b Institute for Medical Research, Military Medical Academy , Belgrade , Serbia
| | - Petar Milosavljevic
- b Institute for Medical Research, Military Medical Academy , Belgrade , Serbia
| | - Mirjana Djukic
- a Department for Toxicology "Akademik Danilo Soldatović", Faculty of Pharmacy , University of Belgrade , Belgrade , Serbia
| | - Luciano Saso
- h Department of Physiology and Pharmacology, Sapienza University , Rome , Italy
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Djuric A, Begic A, Gobeljic B, Stanojevic I, Ninkovic M, Vojvodic D, Pantelic A, Zebic G, Prokic V, Dejanovic B, Stojanovic I, Pavlica M, Djukic D, Saso L, Djurdjevic D, Pavlovic M, Topic A, Vujanovic D, Stevnovic I, Djukic M. Oxidative stress, bioelements and androgen status in testes of rats subacutely exposed to cadmium. Food Chem Toxicol 2015; 86:25-33. [PMID: 26385724 DOI: 10.1016/j.fct.2015.09.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 07/17/2015] [Accepted: 09/03/2015] [Indexed: 11/30/2022]
Abstract
The objective of our study was to examine testicular toxicity of cadmium (Cd), focusing on oxidative stress (OS), essential metals and androgenic status and morphological changes. Male Wistar rats [controls and four Cd-subgroups (n = 6) organized according to the exposure (1, 3, 10 and 21 days)] were intraperitoneally (i.p.) treated with 1 mg CdCl2/kg/day. Testicular Cd deposition was noticed from the 1st day. After 10 and 21 days, copper (Cu) and iron (Fe) increased by 60-109% and 43-67%, respectively, while zinc (Zn) decreased by 24-33%. During 1-21 days of the exposure, decrease in testicular total superoxide dismutase (SOD) and total glutathione-s-transferase (GST) activities occurred gradually by 30-78% and 15-84%, respectively, while superoxide anion radical (O2(-)) increased gradually by 114-271%. After 10-21 days, decrease in testicular catalase (CAT) activity appeared by 13-31%. After 21 days, malondialdehyde (MDA) decreased by 44% and the ratio of oxidized glutathione/reduced glutathione (GSSG/GSH) increased by 130% in testes of the rats exposed to Cd. Additionally, decreased testicular testosterone level and the relative testes mass, along with induced microscopic and macroscopic changes were occured, what can be explained as the consequence of instantly developed OS, impaired essential metals status and Cd testicular deposition.
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Affiliation(s)
- Ana Djuric
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Aida Begic
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Borko Gobeljic
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Ivan Stanojevic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Milica Ninkovic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Danilo Vojvodic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Ana Pantelic
- Department for Applied Chemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Goran Zebic
- Department for Food Technology, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade-Zemun, Serbia
| | - Vera Prokic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Bratislav Dejanovic
- Military Medical Center "Karaburma", Severni bulevar 1, 11000 Belgrade, Serbia
| | - Ivana Stojanovic
- Faculty of Medicine, University of Nis, Bulevar dr Zorana Djindjica 81, 18000 Nis, Serbia
| | - Marina Pavlica
- School of Medicine, University of Belgrade, Dr. Subotica 9, Belgrade 11000, Serbia
| | - Dusan Djukic
- School of Medicine, University of Belgrade, Dr. Subotica 9, Belgrade 11000, Serbia
| | - Luciano Saso
- Department of Physiology and Pharmacology, Sapienza University, Rome, Italy
| | - Dragan Djurdjevic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Milos Pavlovic
- Department of Reproduction, Fertility and Artificial Insemination, Faculty of Veterinary Medicine, University of Belgrade, 11080 Belgrade, Serbia
| | - Aleksandra Topic
- Department for Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Dragana Vujanovic
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Ivana Stevnovic
- Institute for Medical Research, Military Medical Academy, Crnotravska 17, 11000 Belgrade, Serbia
| | - Mirjana Djukic
- Department for Toxicology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
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Djurdjevic D, Djukic M, Ninkovic M, Stevanovic I, Jovanovic M, Vasic U. Glutathione cycle in diquat neurotoxicity: Assessed by intrastriatal pre-treatment with glutathione reductase. ACTA VET-BEOGRAD 2013. [DOI: 10.2298/avb1303159d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Djukic M, Jovanovic MD, Ninkovic M, Stevanovic I, Curcic M, Topic A, Vujanovic D, Djurdjevic D. Intrastriatal pre-treatment with L-NAME protects rats from diquat neurotoxcity. Ann Agric Environ Med 2012; 19:666-672. [PMID: 23311786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
INTRODUCTION Contact herbicide diquat (DQ), redox cycling compound, mediates its systemic toxicity throughout the enlarged production of free radicals. Target organs are liver and kidney in humans. To-date, the mechanism of DQ-induced neurotoxicity has not been rationalized. OBJECTIVE The objectives of the study were to examine the ability of DQ to induce oxidative stress (OS) and/or nitrosative stress (NS) upon intrastriatal (i.s.) administration and to investigate the role of nitric oxide (NO(x)) using NG-nitro-L-arginine methyl ester (L-NAME), a non-selective inhibitor of nitric oxide synthase (NOS) in the pretreatment of DQ i.s. administration. MATERIAL AND METHODS The experiment was conducted on Wistar rats, randomly divided in experimental groups, receiving different treatments i.s. applied. Parameters of OS/NS such as: superoxide anion radical (O(2)(•-)), superoxide dismutase (SOD), malondialdehyde (MDA) and nitrates (NO(3)(-)) were measured in the cortex (bilaterally), at 30(th) min, 24 hours and 7 days after the treatments. RESULTS Lethargy and high mortality rate were observed only in the DQ group (within 24 hours and 2-3 hours, respectively) after awakening from anesthesia. Markedly increased production of NO(x) and O(2)(•-) along with elevated lipid peroxidation altogether contributed to DQ neurotoxicity. The most importantly, the L-NAME i.s. pretreatment protected treated animals from dying and diminished OS/NS response against DQ-induced neurotoxicity. CONCLUSION The i.s. pretreatment with L-NAME resulted in neuroprotection against DQ neurotoxity, based on animal survival and reduced LPO in the cortex.
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Affiliation(s)
- Mirjana Djukic
- Department of Toxicology, Faculty of Pharmacy, Belgrade University, Belgrade, Serbia.
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Djurdjevic D, Janosevic S, Dapcevic B, Vukcevic V, Djordjevic D, Svorcan P, Grgov S. Combined ligation and sclerotherapy versus ligation alone for eradication of bleeding esophageal varices: a randomized and prospective trial. Endoscopy 1999; 31:286-90. [PMID: 10376453 DOI: 10.1055/s-1999-22] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND STUDY AIMS A number of trials have been reported in which a combination of ligation and sclerotherapy was compared with ligation alone, or with sclerotherapy alone. The present trial was carried out to assess whether the combined therapy might achieve more rapid eradication of bleeding esophageal varices. PATIENTS AND METHODS One hundred and three patients with either active bleeding or stigma of recent bleeding from esophageal varices were randomly assigned to receive ligation plus sclerotherapy, or ligation alone. Ligation was performed with the technique introduced by Stiegmann. Sclerotherapy was carried out using low-volume (1 ml) 1% aethoxysclerol, which was injected into varices proximal to each ligature. Further treatment sessions were held seven days later, and then at two-week intervals, until eradication of the varices was achieved. Endoscopic follow-up examinations were carried out at three-month intervals, or immediately if there was any recurrent bleeding. The mean follow-up period was 14 months. RESULTS There were no significant differences between the groups of patients compared with regard to the number of sessions required to eradicate the varices (2.4 +/- 0.7 in the combined group, and 2.3 +/- 0.7 in the ligation group; p>0.05). No significant differences were found between the groups with regard to recurrent bleeding (Fp = 2.882; p > 0.05). Three cases of recurrent bleeding (6%) from treatment-induced ulcers and two cases of recurrent bleeding (4%) from duodenal ulcers were observed with the combined therapy and ligation, respectively. No significant differences in the mortality were found between the groups (Fp = 1.145; p>0.05). Two percent of patients in the ligation group died due to bacterial peritonitis. CONCLUSION Since ligation combined with low-volume sclerotherapy did not reduce the time required for variceal eradication, it can be concluded that the combined therapy is not superior to ligation alone. This mode of endoscopic therapy for the treatment of bleeding esophageal varices is therefore not recommended.
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Affiliation(s)
- D Djurdjevic
- Dept. of Gastroenterology and Hepatology, Zvezdara University Medical Center, Belgrade, Yugoslavia
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Popovic O, Jojic N, Milutinovic-Djuric S, Djurdjevic D, Milovic V. Propranolol for metronidazole-resistant giardiasis. Ital J Gastroenterol 1991; 23:359. [PMID: 1742528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- O Popovic
- Metabolic Department, Zvezdara University Hospital, Beograd, Yugoslavia
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Sinadinovic J, Jovanovic M, Kraincanic M, Djurdjevic D. The significance of iodine in the aggregation of subunits into thyroglobulin and in the formation of 27S iodoprotein. Acta Endocrinol (Copenh) 1973; 73:43-58. [PMID: 4741030 DOI: 10.1530/acta.0.0730043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
ABSTRACT
The significance of stable iodine in the formation of thyroglobulin (TG) with particular reference to the aggregation of subunits into TG and the formation of 27S iodoprotein has been investigated in guinea-pigs and rabbits.
An increase in the content of iodine in the diet or its parenteral application to normally fed animals results in considerable quantitative and qualitative changes in the soluble thyroid proteins as revealed by analytical ultra-centrifugation and sucrose density gradient centrifugation. Although some differences in the protein patterns between guinea-pigs and rabbits normally exist, the changes induced by single and repeated doses of stable iodine (5–100 μg/day) were characterized by: (a) decrease of light proteins, particularly the 12S protein fraction in the guinea-pig; (b) a marked increase of TG and (c) the appearance of a quantity of 27S iodoprotein. These changes in composition of the thyroid soluble proteins are accompanied by changes in the radioiodine distribution among the protein fractions.
The results obtained suggest that the process of thyroid protein polymerization and the process of their iodination are not independent of each other. The level of the supply of the thyroid gland with iodine under normal iodine metabolic conditions considerably influences both the aggregation of subunits into TG and the formation of 27S iodoprotein. It is likely that 27S iodoprotein is formed when larger quantities of normally iodinated TG are synthesized and stored in the gland.
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Djurdjevic D, Georgi JR. Absorption of certain iron compounds by sheep, dogs, and rats. Am J Vet Res 1967; 28:787-91. [PMID: 6036375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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