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Determination of chemical forms of 14C in liquid discharges from nuclear power plants. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2017; 177:256-260. [PMID: 28719853 DOI: 10.1016/j.jenvrad.2017.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 06/07/2017] [Accepted: 07/03/2017] [Indexed: 06/07/2023]
Abstract
Developments of radioanalytical methods for determination of radiocarbon in wastewaters from nuclear power plants (NPP) with pressurized light water reactors, which would distinguish between the dissolved organic and inorganic forms have been carried out. After preliminary tests, the method was used to process pilot samples from wastewater outlets from the Temelín and Dukovany NPPs (Czech Republic). The results of analysis of pilot water samples collected in 2015 indicate that the instantaneous 14C releases into the water streams would be about 7.10-5 (Temelín) and 4.10-6 (Dukovany) of the total quantity of the 14C liberated into the environment.
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Die Bedeutung der einzeitigen Aortoarteriographie mit dem Blattfilmwechsler. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1228728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Abstract
The applicability of carrier ampholyte-free isoelectric focusing (CAF-IEF) for analyses of ampholytes is demonstrated. The suggested method is based on the principle of both side regulated ionic matrix in CAF-IEF. A sharp step of pH is created in the column filled with a sample dissolved in a background electrolyte by influence of current and solvolytic fluxes. Here, ampholytes are focused upon. The magnitude of the step, its velocity and direction of its movement can be regulated electrically. In this manner, favorable separation properties of the system can be set up, even during the run. This brings several advantages over conventional methods. The principles of the separation can be easily changed, permitting selective pre-concentration (trapping) of minor components by processing large amounts of a sample to be preformed, effective isotachophoresis or IEF pre-separation and final electrophoretic analysis in one run. Advantages of these combinations are discussed together with the right choice of the working electrolyte. A 1000-fold increase in amount of substance in a column can be achieved for both isotachophoresis and capillary zone electrophoresis combined with CAF-IEF pre-concentration at reasonable working conditions. It enables a limit of detection at the nmol/l level with a concentration factor of about 10(7) to be reached.
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Application of neural networks with feedback connections in chemistry: prediction of 13C NMR chemical shifts in a series of monosubstituted benzenes. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/0166-1280(92)87132-j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
In contrast to common capillary zone electrophoresis, with a constant composition of the background electrolyte, a new method is described, based on a change of the ionic matrix composition during the migration of the sample components. The proposed method expands the scale of pK's of analyzed compounds in a single run and affords new potential for optimizing the separation. The step change of the ionic matrix composition was achieved by displacing the primary matrix by the modified ionic matrix (electrolyte) which migrated against the movement of the sample components. The separation thus proceeded in the primary ionic matrix (electrolyte) while the detection was performed in the modified matrix with resultant shortening of the analysis time and convenient quantitation. A model mixture of five compounds, with a difference of four units in pK could be well resolved.
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The application of plasma tartrate-resistant acid phosphatase to assess changes in bone resorption in response to artificial menopause and its treatment with estrogen or norethisterone. Calcif Tissue Int 1989; 45:273-80. [PMID: 2509014 DOI: 10.1007/bf02556018] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Plasma tartrate-resistant acid phosphatase (TR ACP), urinary hydroxyproline excretion (UH), serum osteocalcin, and bone alkaline phosphatase isozyme were determined in a prospective study in 31 women who had undergone bilateral ovariectomy (OOX). Nine patients were followed up for 1 year without treatment and for the following 3 years when on mestranol (M) substitution. On the basis of UH, 22 patients were identified as having increased bone resorption (BR) within 3 months of OOX. Subsequently, 11 patients were treated with transdermal estradiol (E2) and 11 patients with norethisterone (norethindrone, NE). In untreated patients, the biochemical indices of BR peaked 3-6 months following OOX and biochemical indices of bone formation (BF) continued to increase from 3 until 12 months. The substitution with both E2 or M resulted in normalization in serum and urinary calcium, serum phosphate, renal threshold phosphate concentration (TmPO4/GRF), and biochemical indices of BR within 4 months of treatment. Biochemical indices of BF normalized within 6 months of treatment. In the M-treated group, these effects continued for 3 years of the follow-up. The hormonal substitution had a protective effect on cortical and lumbar spine bone mass. A significant decrease, but not to normal values, in biochemical indices of BR and a persistent elevation in indices of BF were found in NE-treated patients. Unlike E2, NE does not depress osteoblastic function. There is strong evidence supporting the utility of measurements of TR ACP in plasma in examination of women who had ovariectomies and in assessement of the efficacy of treatment.
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Abstract
Women with increased bone resorption induced by bilateral oophorectomy 1-5 years previously (of a total of 48 women in the study, 20 were controls, and 28 were the treatment group) were studied during a 3 year follow-up. The ossein-hydroxyapatite compound (OHC) treatment provided 1.6 g calcium, 0.74 g phosphorus and 1.94 g noncollagen peptides a day. Biochemical indices of bone remodeling (urinary hydroxyproline/creatinine and calcium/creatinine ratios, bone alkaline phosphatase isoenzyme in serum and plasma tartrate resistant acid phosphatase) decreased significantly in both treatment and control groups compared with their baseline values. Biochemical indices were significantly lower in the treatment group compared to the controls after the first year, but in only half the patients after three years. By the third year these responders had significantly higher cortical area than controls. In an additional 13 women a transient response to OHC was followed by an accelerated bone loss and a return to the control values of the biochemical indices of bone resorption. In the poor responders an estrogen/progesterone substitution resulted within 6 months in a complete normalization in the biochemical parameters and in no further cortical bone loss. The results confirm a heterogeneous pattern of bone mass loss in menopause and indicate that OHC treatment is of value in preventing cortical bone loss in a portion of at-risk postmenopausal women, provided that the efficacy of the treatment is monitored.
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Generation of operational electrolytes for isotachophoresis and capillary zone electrophoresis in a three-pole column. J Chromatogr A 1989. [DOI: 10.1016/s0021-9673(00)94198-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Abstract
In a cross-sectional study in 214 women who had undergone bilateral oophorectomy up to 12 years previously, the maximal rate of bone loss, as judged by radiogrammetry of the metacarpals and by dual-photon absorptiometry of the lumbar spine, coincided with the peak of the dissociation between urinary hydroxyproline excretion and/or plasma tartrate resistant acid phosphatase activity and the activity of bone isoenzyme of serum alkaline phosphatase. A significant negative correlation was found between the prevalence of the biochemical indices of bone resorption relative to bone formation and/or biochemical indices of bone resorption and the change in the metacarpal cortical area per year. The prevalence of bone resorption relative to bone formation was evident even 12 years after oophorectomy, indicating continuous imbalance of bone remodeling in the patients. Accordingly, the rates of 2.8% cortical and 8% trabecular bone loss per year on the first year after oophorectomy decreased exponentially but did not become asymptotic with the slow phase of bone loss in healthy women up to 12 years after oophorectomy.
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[A cross-sectional study of bone changes after oophorectomy]. CESKOSLOVENSKA GYNEKOLOGIE 1986; 51:706-13. [PMID: 3791435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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15
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[Computer documentation of tubal sterility]. CESKOSLOVENSKA GYNEKOLOGIE 1982; 47:512-523. [PMID: 7127513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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16
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EXternal iliac "steal syndrome". THE JOURNAL OF CARDIOVASCULAR SURGERY 1978; 19:355-7. [PMID: 681439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A case of steal syndrome in the external iliac artery characterized by distinct clinical symptoms and by a reversal of blood flow in the internal iliac artery secondary to the closure of the common iliac artery, has been described. The patient reported marked decrease in sexual activity and impariment of erection in addition to intermittent claudication of the corresponding lower extremity. He was able to achieve and maintain an erection only with absolute rest. The erection disapperaed immediately when he moved his lower extremities. Endarterectomy of the common external and internal iliac arteries along with an aortofemoral bypass, resulted in disapperrance of both claudication and his sexual impotence.
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[Problems in the function of the experimentally transplanted lung]. ROZHLEDY V CHIRURGII : MESICNIK CESKOSLOVENSKE CHIRURGICKE SPOLECNOSTI 1977; 56:334-9. [PMID: 331496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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20
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[Pathogenesis of erection disorders in diabetics]. CASOPIS LEKARU CESKYCH 1976; 115:1242-5. [PMID: 991172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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[Penile arterial occlusions in erection impotence. A new type of angiography-phalloarteriography]. CASOPIS LEKARU CESKYCH 1976; 115:1245-7. [PMID: 991173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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[Determination of the total myocardial blood flow in patients with ischemic heart disease using selective intracoronary 133 Xe]. CASOPIS LEKARU CESKYCH 1976; 115:1233-8. [PMID: 991170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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23
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[Methods of roentgen examination at kidney transplantation in clinical practice (author's transl)]. CESKOSLOVENSKA RADIOLOGIE 1975; 29:307-14. [PMID: 1102133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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24
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[Pulmonary complications after surgery of the coronary arteries]. ROZHLEDY V CHIRURGII : MESICNIK CESKOSLOVENSKE CHIRURGICKE SPOLECNOSTI 1974; 53:596-600. [PMID: 4410633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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25
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[Angiography of cardiac arteries and left-side ventriculography (author's transl)]. CESKOSLOVENSKA RADIOLOGIE 1974; 28:145-53. [PMID: 4848050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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26
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[Methods and complications of directed coronary angiography and left-side ventriculography]. ROZHLEDY V CHIRURGII : MESICNIK CESKOSLOVENSKE CHIRURGICKE SPOLECNOSTI 1974; 53:251-7. [PMID: 4845061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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27
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[Correlation of exercise-electrocardiogram with coronary arteriography (author's transl)]. CASOPIS LEKARU CESKYCH 1973; 112:1480-4. [PMID: 4586959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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28
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[Direct arterial anastomosis on corpora cavernosa penis in the therapy of erective impotence]. ROZHLEDY V CHIRURGII : MESICNIK CESKOSLOVENSKE CHIRURGICKE SPOLECNOSTI 1973; 52:587-90. [PMID: 4795713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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29
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Arteriographisches und klinisches Bild des Steal-Phänomens im Gebiete der Aortenbogenäste. ROFO-FORTSCHR RONTG 1973. [DOI: 10.1055/s-0029-1229682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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[Possibilities of evaluation of the function function of the left ventricle from the x-ray picture]. CASOPIS LEKARU CESKYCH 1973; 112:577-81. [PMID: 4703610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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31
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[High-pressure syringe Contrac II E in animal experiments and clinic. Its comparison to the Gidlund syringe]. CASOPIS LEKARU CESKYCH 1972; 111:688-94. [PMID: 5079917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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32
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[Solitary liver abscess]. ROZHLEDY V CHIRURGII : MESICNIK CESKOSLOVENSKE CHIRURGICKE SPOLECNOSTI 1972; 51:331-6. [PMID: 5038164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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33
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[Possibilities of preoperative evaluation of functional importance of renal artery stenosis by means of the catheterization method]. CESKOSLOVENSKA RADIOLOGIE 1971; 25:89-97. [PMID: 5581776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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34
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[Arteriography in obliterating arterial disease]. ROZHLEDY V CHIRURGII : MESICNIK CESKOSLOVENSKE CHIRURGICKE SPOLECNOSTI 1971; 50:194-8. [PMID: 5579821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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35
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[Measurement of the pressure gradient in renal artery stenosis]. FORTSCHRITTE AUF DEM GEBIETE DER RONTGENSTRAHLEN UND DER NUKLEARMEDIZIN 1969; 110:48-56. [PMID: 5390077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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36
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[Complications in various arteriographic examination methods]. FORTSCHRITTE AUF DEM GEBIETE DER RONTGENSTRAHLEN UND DER NUKLEARMEDIZIN 1969; 110:57-64. [PMID: 5390078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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37
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[Arteriographic study of extracranial segments of arteries supplying the brain]. CESKOSLOVENSKA RADIOLOGIE 1968; 22:361-70. [PMID: 5700333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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38
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[Choice of suitable arteriographic methods of study of extracranial vascular segments supplying the brain]. FORTSCHRITTE AUF DEM GEBIETE DER RONTGENSTRAHLEN UND DER NUKLEARMEDIZIN 1968; 109:335-44. [PMID: 4917010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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39
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Die Wahl der geeignetsten arteriographischen Untersuchungsmethode der hirnversorgenden extrakraniellen Gefäßabschnitte. ROFO-FORTSCHR RONTG 1968. [DOI: 10.1055/s-0029-1228458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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[Choice of the most appropriate arteriographic examination method of the extracranial brain supplying blood vessel portions]. FORTSCHRITTE AUF DEM GEBIETE DER RONTGENSTRAHLEN UND DER NUKLEARMEDIZIN 1968; 109:335-44. [PMID: 5761225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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41
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[Analysis of possible complications during individual technics of arteriographic examinations]. CESKOSLOVENSKA RADIOLOGIE 1967; 21:73-80. [PMID: 6046465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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42
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[Indications for arteriography from the aspect of reconstructive arterial surgery]. CESKOSLOVENSKA RADIOLOGIE 1967; 21:81-9. [PMID: 6046466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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