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Moon SI, Yim DH, Choi K, Eom SY, Choi BS, Park JD, Kim H, Kim YD. Association Between Multiple Heavy Metal Exposures and Cholesterol Levels in Residents Living Near a Smelter Plant in Korea. J Korean Med Sci 2024; 39:e77. [PMID: 38442720 PMCID: PMC10911942 DOI: 10.3346/jkms.2024.39.e77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/28/2023] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Considering the interactions between heavy metals, a comprehensive evaluation of the effects of exposure to various types of co-interacting heavy metals on health is required. This study assessed the association between dyslipidemia markers and blood mercury, lead, cadmium, iron, zinc, and nickel levels in residents of an abandoned refinery plant. METHODS A total of 972 individuals (exposed group: 567, control group: 405) living near the Janghang refinery plant in the Republic of Korea were included. Blood mercury, lead, cadmium, iron, zinc, nickel, cholesterol, and triglyceride levels were measured. The combined effect of the six heavy metals on dyslipidemia markers was evaluated using a Bayesian kernel machine regression (BKMR) model and compared with the results of a linear regression analysis. The BKMR model results were compared using a stratified analysis of the exposed and control groups. RESULTS In the BKMR model, the combined effect of the six heavy metals was significantly associated with total cholesterol (TC) levels both below the 45th percentile and above the 55th percentile in the total population. The combined effect range between the 25th and 75th percentiles of the six metals on TC levels was larger in the exposed group than that in the total population. In the control group, the combined effects of the changes in concentration of the six heavy metals on the TC concentration were not statistically significant. CONCLUSION These results suggest that the cholesterol levels of residents around the Janghang refinery plant may be elevated owing to exposure to multiple heavy metals.
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Affiliation(s)
- Sun-In Moon
- Chungbuk Environmental Health Center, Chungbuk National University Hospital, Cheongju, Korea
- Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Dong-Hyuk Yim
- Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Kyunghi Choi
- Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Sang-Yong Eom
- Chungbuk Environmental Health Center, Chungbuk National University Hospital, Cheongju, Korea
- Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea
- Department of Office of Public Healthcare Service, Chungbuk National University Hospital, Cheongju, Korea
| | - Byung-Sun Choi
- Department of Preventive Medicine, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Jung-Duck Park
- Department of Preventive Medicine, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Heon Kim
- Chungbuk Environmental Health Center, Chungbuk National University Hospital, Cheongju, Korea
- Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea
- Department of Occupational and Environmental Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Yong-Dae Kim
- Chungbuk Environmental Health Center, Chungbuk National University Hospital, Cheongju, Korea
- Department of Preventive Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea
- Chungbuk Regional Cancer Center, Chungbuk National University Hospital, Cheongju, Korea.
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Wang S, Shan T, Zhu J, Jiang Q, Gu L, Sun J, Bao Y, Deng B, Wang H, Wang L. Mediation Effect of Body Mass Index on the Association of Urinary Nickel Exposure with Serum Lipid Profiles. Biol Trace Elem Res 2023; 201:2733-2743. [PMID: 35915279 PMCID: PMC9342935 DOI: 10.1007/s12011-022-03375-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/28/2022] [Indexed: 11/14/2022]
Abstract
The objective of this study was to determine the relationship of urinary nickel (U-Ni) exposure to serum lipid profiles and the mediation effect of body mass index (BMI) in a US general population. We analyzed the cross-sectional data from 3517 participants in the National Health and Nutrition Examination Survey (NHANES) (2017-March 2020). Multivariable linear regression and restricted cubic spline (RCS) regression were conducted to explore the association of U-Ni with four serum lipids and four lipids-derived indicators. Mediation analysis was performed to examine the effect of BMI on the relationship between U-Ni levels and serum lipid profiles. Compared with the lowest quartile, the β with 95% confidence intervals (CIs) in the highest quartile were - 12.83 (- 19.42, - 6.25) for total cholesterol (TC) (P for trend < 0.001), - 12.76 (- 19.78, - 5.74) for non-high-density lipoprotein cholesterol (non-HDL-C) (P for trend = 0.001) and - 0.29 (- 0.51, - 0.07) for TC/HDL-C (P for trend = 0.007) in the fully adjusted model. RCS plots showed the linear association of log2-transformed U-Ni levels with TC, non-HDL-C and TC/HDL-C (P for nonlinearity = 0.294, 0.152, and 0.087, respectively). Besides, BMI decreased monotonically in correlation with increasing U-Ni levels (P for trend < 0.001). Mediation analysis revealed that BMI significantly mediated the relationship of U-Ni to TC, non-HDL-C and TC/HDL-C with mediated proportions of 11.17%, 22.20% and 36.44%, respectively. In summary, our findings suggest that BMI mediates the negative association of U-Ni with TC, non-HDL-C, and TC/HDL-C in the US general population.
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Affiliation(s)
- Sibo Wang
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Tiankai Shan
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Jun Zhu
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
- Department of Cardiology, Geriatrics Hospital of Jiangsu Province, Nanjing, 210024, China
| | - Qiqi Jiang
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Lingfeng Gu
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Jiateng Sun
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Yulin Bao
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Bo Deng
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Hao Wang
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China
| | - Liansheng Wang
- Department of Cardiology, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, 300 Guangzhou Road, Nanjing, 210029, China.
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Heavy Metal Contamination in Rice-Producing Soils of Hunan Province, China and Potential Health Risks. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:15584-93. [PMID: 26670240 PMCID: PMC4690941 DOI: 10.3390/ijerph121215005] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 11/29/2015] [Accepted: 11/29/2015] [Indexed: 12/16/2022]
Abstract
We studied Cd, Cr, As, Ni, Mn, Pb, and Hg in three agricultural areas of Hunan province and determined the potential non-carcinogenic and carcinogenic risks for residents. Soil and brown rice samples from Shimen, Fenghuang, and Xiangtan counties were analyzed by atomic absorption spectroscopy. Soil levels of Cd and Hg were greatest, followed by As and Ni. The mean concentrations of heavy metals in brown rice were Cd 0.325, Cr 0.109, As 0.344, Ni 0.610, Mn 9.03, Pb 0.023, and Hg 0.071 mg/kg, respectively. Cd and Hg had greater transfer ability from soil to rice than the other elements. Daily intake of heavy metals through brown rice consumption were estimated to be Cd 2.30, Cr 0.775, As 2.45, Ni 4.32, Pb 0.162, Mn 64.6 and Hg 0.503 µg/(kg·day), respectively. Cd, Hg and As Hazard Quotient values were greater than 1 and Cd, Cr, As and Ni Cancer Risk values were all greater than 10(-4). The total non-carcinogenic risk factor was 14.6 and the total carcinogenic risk factor was 0.0423. Long-term exposure to heavy metals through brown rice consumption poses both potential non-carcinogenic and carcinogenic health risks to the local residents.
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Methylmercury Increases and Eicosapentaenoic Acid Decreases the Relative Amounts of Arachidonic Acid-Containing Phospholipids in Mouse Brain. Lipids 2015; 51:61-73. [DOI: 10.1007/s11745-015-4087-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 10/02/2015] [Indexed: 12/29/2022]
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Aspli KT, Flaten TP, Roos PM, Holmøy T, Skogholt JH, Aaseth J. Iron and copper in progressive demyelination--New lessons from Skogholt's disease. J Trace Elem Med Biol 2015; 31:183-7. [PMID: 25563774 DOI: 10.1016/j.jtemb.2014.12.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/03/2014] [Accepted: 12/04/2014] [Indexed: 11/30/2022]
Abstract
The pathophysiological mechanisms of progressive demyelinating disorders including multiple sclerosis are incompletely understood. Increasing evidence indicates a role for trace metals in the progression of several neurodegenerative disorders. The study of Skogholt disease, a recently discovered demyelinating disease affecting both the central and peripheral nervous system, might shed some light on the mechanisms underlying demyelination. Cerebrospinal fluid iron and copper concentrations are about four times higher in Skogholt patients than in controls. The transit into cerebrospinal fluid of these elements from blood probably occurs in protein bound form. We hypothesize that exchangeable fractions of iron and copper are further transferred from cerebrospinal fluid into myelin, thereby contributing to the pathogenesis of demyelination. Free or weakly bound iron and copper ions may exert their toxic action on myelin by catalyzing production of oxygen radicals. Similarities to demyelinating processes in multiple sclerosis and other myelinopathies are discussed.
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Affiliation(s)
- Klaus Thanke Aspli
- Department of Neurology, Innlandet Hospital Trust, Lillehammer Hospital Division, Lillehammer, Norway
| | - Trond Peder Flaten
- Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway
| | - Per M Roos
- Department of Neurology, Division of Clinical Neurophysiology, Oslo University Hospital, Oslo, Norway; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Trygve Holmøy
- Department of Neurology, Akershus University Hospital, Norway; Institute of Clinical Medicine, University of Oslo, Norway
| | - Jon H Skogholt
- Innlandet Hospital Trust, Kongsvinger Hospital Division, Kongsvinger, Norway
| | - Jan Aaseth
- Innlandet Hospital Trust, Kongsvinger Hospital Division, Kongsvinger, Norway
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Micronutrient requirements for growth and hydrocarbon production in the oil producing green alga Botryococcus braunii (Chlorophyta). PLoS One 2012; 7:e41459. [PMID: 22848502 PMCID: PMC3405085 DOI: 10.1371/journal.pone.0041459] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Accepted: 06/25/2012] [Indexed: 11/19/2022] Open
Abstract
The requirements of micronutrients for biomass and hydrocarbon production in Botryococcus braunii UTEX 572 were studied using response surface methodology. The concentrations of four micronutrients (iron, manganese, molybdenum, and nickel) were manipulated to achieve the best performance of B. braunii in laboratory conditions. The responses of algal biomass and hydrocarbon to the concentration variations of the four micronutrients were estimated by a second order quadratic regression model. Genetic algorithm calculations showed that the optimal level of micronutrients for algal biomass were 0.266 µM iron, 0.707 µM manganese, 0.624 µM molybdenum and 3.38 µM nickel. The maximum hydrocarbon content could be achieved when the culture media contained 10.43 µM iron, 6.53 µM manganese, 0.012 µM molybdenum and 1.73 µM nickel. The validation through an independent test in a photobioreactor suggests that the modified media with optimised concentrations of trace elements can increase algal biomass by 34.5% and hydrocarbon by 27.4%. This study indicates that micronutrients play significant roles in regulating algal growth and hydrocarbon production, and the response surface methodology can be used to optimise the composition of culture medium in algal culture.
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Rao MV, Purohit A, Patel T. Melatonin protection on mercury-exerted brain toxicity in the rat. Drug Chem Toxicol 2010; 33:209-16. [DOI: 10.3109/01480540903349258] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Son MH, Kang KW, Lee CH, Kim SG. Potentiation of arsenic-induced cytotoxicity by sulfur amino acid deprivation (SAAD) through activation of ERK1/2, p38 kinase and JNK1: the distinct role of JNK1 in SAAD-potentiated mercury toxicity. Toxicol Lett 2001; 121:45-55. [PMID: 11312036 DOI: 10.1016/s0378-4274(01)00314-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Sulfur amino acid deficiency occurs in certain pathophysiological situations (e.g. protein-calorie malnutrition). Previous studies revealed that sulfur amino acid deprivation (SAAD) activated MAP kinases and potentiated cadmium-induced cytotoxicity by activation of ERK1/2 in conjunction with p38 kinase or JNK. The present study was designed to determine susceptibility of cells to a variety of heavy metals in combination with SAAD. Viability was assessed in H4IIE cells treated with sodium arsenite, mercuric chloride, sodium selenite, lead acetate, chromium trioxide or manganese chloride. SAAD potentiated the cytotoxicity of H4IIE cells by arsenic or mercury (i.e. EC50, 19 and 5 microM in SAAD vs. 401 and 42 microM in control medium, respectively). TUNEL assays revealed that the potentiated arsenic or mercury toxicity involved apoptotic cell death. Lead or selenite moderately elicited cell death, which was not enhanced by SAAD. Chromium or manganese caused no significant cytotoxicity. Treatment of cells with U0126 [1,4-diamino-2,3-dicyano-1,4-bis(2-aminophenylthio)butadiene] an ERK1/2 inhibitor or SB203580 [4-(4-fluorophenyl)-2-(4-methylsulfinylphenyl)-5-(4-pyridyl)1H-imidazole] a p38 kinase inhibitor effectively prevented SAAD-potentiated arsenic toxicity. The potentiated arsenic toxicity was also inhibited in cells stably expressing a dominant negative mutant of c-Jun N-terminal kinase 1 [JNK1(-)]. The inhibitors of extracellular signal-regulated kinase 1/2 (ERK1/2) and p38 kinase failed to prevent mercury-induced toxicity enhanced by SAAD. JNK1(-) cells were minimally susceptible to mercury in SAAD medium. These results demonstrated that SAAD potentiated cytotoxicity induced by arsenic or mercury and that activation of ERK1/2, p38 kinase and JNK1 was responsible for the potentiated arsenic toxicity, whereas the mercury toxicity enhanced by SAAD was mediated with the activity of JNK1.
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Affiliation(s)
- M H Son
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Sillim-dong, Kwanak-gu, 151-742, Seoul, South Korea
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Chapman L, Chan HM. The influence of nutrition on methyl mercury intoxication. ENVIRONMENTAL HEALTH PERSPECTIVES 2000; 108 Suppl 1:29-56. [PMID: 10698722 PMCID: PMC1637774 DOI: 10.1289/ehp.00108s129] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
This article reviews progress in the research of methyl mercury (MeHg) and nutrient interactions during the past two decades. Special emphasis is placed on the following three major areas: a) effects on kinetics, b) effects on toxicity, and c) possible mechanisms. Dietary information is not usually collected in most epidemiologic studies examining of the effects of MeHg exposure. However, inconsistency of the MeHg toxicity observed in different populations is commonly attributed to possible effects of dietary modulation. Even though the mechanisms of interaction have not been totally elucidated, research in nutritional toxicology has provided insights into the understanding of the effects of nutrients on MeHg toxicity. Some of this information can be readily incorporated into the risk assessment of MeHg in the diets of fish-eating populations. It is also clear that there is a need for more studies designed specifically to address the role of nutrition in the metabolism and detoxification of MeHg. It is also important to collect more detailed dietary information in future epidemiologic studies of MeHg exposure.
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Affiliation(s)
- L Chapman
- Center for Indigenous Peoples' Nutrition and the Environment and the School of Dietetics and Human Nutrition, Macdonald Campus at McGill University, Quebec, Canada
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Messer RL, Bishop S, Lucas LC. Effects of metallic ion toxicity on human gingival fibroblasts morphology. Biomaterials 1999; 20:1647-57. [PMID: 10503967 DOI: 10.1016/s0142-9612(99)00044-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Alloys used as implant materials release metal ions to surrounding tissues. Cytotoxic substances attack at the molecular level, and these effects are reflected in the structure of the cells and organelles. The objective of this study was to evaluate the cellular morphology and ultrastructural changes of cultured human gingival fibroblasts to salt solutions of ions (beryllium (Be+2), chromium (Cr+6 and Cr+3), nickel (Ni+2), molybdenum (Mo+6)) which may be released from nickel-chromium dental alloys. The concentrations chosen were based on previously conducted cell culture studies. Fibroblasts were exposed to the different ion concentrations for 24 or 72 h. Cellular morphology and ultrastructural features were examined using scanning electron microscopy and transmission electron microscopy. Ultrastructural alterations observed included irregular shaped nuclei for cells exposed to hexavalent chromium and nickel, pseudopodia for cells exposed to beryllium and molybdenum, and lipid droplet formation in cells exposed to nickel.
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Affiliation(s)
- R L Messer
- Department of Biomedical Engineering, University of Alabama at Birmingham 35294-4440, USA.
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Wadhwani KC, Rapoport SI. Transport properties of vertebrate blood-nerve barrier: comparison with blood-brain barrier. Prog Neurobiol 1994; 43:235-79. [PMID: 7816928 DOI: 10.1016/0301-0082(94)90002-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- K C Wadhwani
- Laboratory of Neurosciences, NIA, NIH, Bethesda, MD 20892
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Wedler FC. Biological significance of manganese in mammalian systems. PROGRESS IN MEDICINAL CHEMISTRY 1993; 30:89-133. [PMID: 7905650 DOI: 10.1016/s0079-6468(08)70376-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- F C Wedler
- Department of Molecular and Cell Biology, Pennsylvania State University, University Park 16802
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Alterations of microsomal lipid synthesis in gill cells of bivalve mollusc Mizuhopecten yessoensis in response to cadmium accumulation. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0742-8413(91)90065-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nordlind K. Biological effects of mercuric chloride, nickel sulphate and nickel chloride. PROGRESS IN MEDICINAL CHEMISTRY 1990; 27:189-233. [PMID: 2217825 DOI: 10.1016/s0079-6468(08)70292-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- K Nordlind
- Department of Dermatology, Karolinska Hospital, Stockholm, Sweden
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