551
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Annat G, Grandjean B, Vincent M, Jarsaillon E, Sassard J. Effects of right atrial stretch on plasma renin activity. ARCHIVES INTERNATIONALES DE PHYSIOLOGIE ET DE BIOCHIMIE 1976; 84:311-5. [PMID: 71035 DOI: 10.3109/13813457609073982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In anaesthetized dog, right atrial stretch leads in the first five minutes to a decrease in plasma renin activity, when measured in inferior vena cava just above the renal veins. Bilateral cervical vagotomy increases plasma renin activity. After vagotomy, atrial stretch no longer has any effect on plasma renin activity. The results support the hypothesis of a control of renin secretion originating from atrial volume receptors.
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552
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Vincent M, Dupont J, Sassard J. Plasma renin activity as a function of age in two new strains of spontaneously hypertensive and normotensive rats. CLINICAL SCIENCE AND MOLECULAR MEDICINE 1976; 50:103-7. [PMID: 1253523 DOI: 10.1042/cs0500103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
1. Strains of spontaneously hypertensive and normotensive rats were selected by repeated inbreeding. 2. Brief ether anesthesia was shown to produce a two- to three-fold increase in plasma renin activity in both strains. 3. Plasma renin activity was significantly higher in young spontaneously hypertensive than in normotensive rats of the same age (5-7 weeks). After the ninth week plasma renin activity decreased and, at week 45, became significantly lower in hypertensive than in normotensive rats. 4. When hypertension was established a significant inverse relationship was found between plasma renin activity and systolic blood pressure in spontaneously hypertensive and in normotensive rats. 5. It seems unlikely that the renin-angiotensin system plays a major role in the maintenance of the established spontaneous hypertension in this strain. However, renin hypersecretion may be important in the early pre-hypertensive stage of genetic hypertension in rats.
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553
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Sassard J, Vincent M, Annat G, Bizollon CA. A kinetic study of plasma renin and aldosterone during changes of posture in man. J Clin Endocrinol Metab 1976; 42:20-7. [PMID: 1249191 DOI: 10.1210/jcem-42-1-20] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cardiovascular parameters, hematocrit (Ht), plasma electrolytes, renin activity (PRA) and aldosterone concentration (PAC) were measured in 12 normal human subjects (6 males and 6 females) eating an ad lib diet. At 8 AM, volunteers assumed the following postural changes: 1 hour supine, then 2 hours upright and finally 1 hour supine. Orthostatism induced the following changes: heart rate, systolic and diastolic blood pressure increased immediately; Ht rose significantly at the 5th min in males but not in females; Plasma sodium showed no variations but potassium increased after 30 min; PRA rose significantly at the 5th min and, after 120 min of orthostatism, was found to be 3 times greater than its value after recumbency; and PAC increased significantly at the 15th min and exhibited a plateau 4.5 times its basal values after 90 min of upright posture. When subjects returned to the supine position all the parameters, except PAC decreased. During active orthostatism, a significant correlation was found between PAC and plasma potassium, but correlation was closer between PAC and PRA and between PAC and PRA + potassium. It can be concluded that the renin-angiotensin system is a more potent stimulus for aldosterone secretion than plasma potassium in normal man assuming postural changes. The results presented here can be applied to the development of a short posture test in non-hospitalized patients.
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554
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Gallay J, Vincent M, Alfsen A. Mammalian 3-oxosteroid delta4-delta5-isomerase: a membrane-bound enzyme. I. Fluorescence study of the relationship between the enzymatic binding site, phospholipids, water and ions. BIOCHIMICA ET BIOPHYSICA ACTA 1975; 397:489-500. [PMID: 1156588 DOI: 10.1016/0005-2744(75)90139-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The microsomal membranes and the proteolipidic particles obtained by disruption of the microsomes by alkaline-earth ions at molar concentration have been compared by measuring the fluorescence properties of 1-anilino-naphthalene-3-sulfonate and naphthyl-1-phenylamine. The protein lipid arrangement of these two systems appears to be not essentially different. The study of fluorescence polarization of an hydrophobic probe (perylene) in function of Mg2+ concentration suggests a possible mechanism of disruption of the membrane by Mg2+ involving the strong structure-making effect of the ion. The comparison of the fluorescence polarization changes of perylene and equilenine (a competitive inhibitor of the isomerase) with the ionic concentration indicates that there is no direct relation between the bulk lipidic phase and the enzymatic binding site properties. Moreover, the emission of equilenine is completely quenched by I-, in contrast with the napththyl-1-phenylamine and perylene probes, which clearly demonstrates the accessibility of the catalytic site to water molecules and ions.
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555
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Gallay J, Vincent M, Alfsen A. Mammalian 3-oxosteroid delta4-delta5-isomerase. A membrane-bound enzyme. II. Activation by divalent cations. BIOCHIMICA ET BIOPHYSICA ACTA 1975; 397:501-9. [PMID: 1156589 DOI: 10.1016/0005-2744(75)90140-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Alkaline-earth ions (Mg2+, Ca2+ and Sr2+) have two specific effects on the kinetic parameters of the beef adrenal 3-oxosteroid delta4-delta5-isomerase activity in the microsomes and in the particles obtained after disrupting the membrane structure by action of 1 M MgCl2. On the microsomal enzyme, a 2-fold increase of V is observed with the three cations under study. The small difference in the effect of the three ions could be related to their hydration energy. It is suggested that the interaction of the ion with water is the determinant step of the activation mechanism and not the fixation of the ion on the enzyme or on some others possible binding sites in this system. With the enzyme in the proteolipidic particles, the use of EDTA as a chelating agent for the cations present in the enzymatic assay, allows the characterization of two effects: at low concentration of EDTA, an increase of Km is observed and at higher concentration (2 mM), V is decreased. A subsequent addition of Mg2+ leads to an activation in two steps: V is increased in the first step without change in Km, the second step consists of a decrease of Km without any change in V. A relation between the structural perturbations induced by the ions (Gallay, J., Vincent, M. and Alfsen, A. (1975) Biochim. Biophys. Acta 397, 489-500) and their kinetic effect on the enzymatic reaction is established.
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556
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Sassard J, Sann L, Vincent M, Francois R, Cier JF. Plasma renin activity in normal subjects from infancy to puberty. J Clin Endocrinol Metab 1975; 40:524-5. [PMID: 1117060 DOI: 10.1210/jcem-40-3-524] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Immunoassayable Plasma renin activity (PRA) was measured in normal subjects aged from 15 days to 15 years. A very progressive decrease of PRA with age could be demonstrated. Practical conditions for the study of PRA were defined.
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557
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Rondelaud D, Vincent M. [Studies on the daily migrations of Galba truncatula Müller infested or non infested by Fasciola hepatica L (author's transl)]. ANNALES DE PARASITOLOGIE HUMAINE ET COMPAREE 1974; 49:411-6. [PMID: 4457028] [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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558
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Yacoub M, Faure J, Morena H, Vincent M, Faure H. [Acute hydrocyanic acid intoxication. Current data on the metabolism of cyanide and treatment by hydroxocobalamin]. EUROPEAN JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HYGIENE. JOURNAL EUROPEEN DE TOXICOLOGIE 1974; 7:22-9. [PMID: 4367473] [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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559
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Shapiro CS, Johnson J, Vincent M, Fleury AF. Nursing care of the cleft-lip/cleft-palate child. RN 1973; 36:46-8 passim. [PMID: 4489308] [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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560
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Vincent M, Remond G, Desnoyers P, Labaume J. Dl- -(4-isobutyl(cyclohexen-1-yl))aklanoic acids and derivatives as fibrinolytic and thrombolytic compounds. J Med Chem 1973; 16:710-2. [PMID: 4715008 DOI: 10.1021/jm00264a032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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561
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Dupont J, Dupont JC, Froment A, Milon H, Vincent M. Selection of three strains of rats with spontaneously different levels of blood pressure. BIOMEDICINE / [PUBLIEE POUR L'A.A.I.C.I.G.] 1973; 19:36-41. [PMID: 4710247] [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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562
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Annat G, Pequignot JM, Vincent M, Bobichon AM, Peyrin L, Tourniaire A, Sassard J. [Renin and catecholamine secretions in a case of orthostatic hypotension: its physiopathological value]. LYON MEDICAL 1972; 228:691-6. [PMID: 4662036] [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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563
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Vincent M, Sassard J, Cier JF. [Rapid method for radio-immunochemical determination of plasma renin activity]. REVUE EUROPEENNE D'ETUDES CLINIQUES ET BIOLOGIQUES. EUROPEAN JOURNAL OF CLINICAL AND BIOLOGICAL RESEARCH 1972; 17:1001-6. [PMID: 4349612] [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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564
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Sassard J, Vincent M. [Comparison between radioimmunological and biological determination of plasma renin activity]. Clin Chim Acta 1972; 41:321-7. [PMID: 4345619 DOI: 10.1016/0009-8981(72)90527-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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565
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Vincent M, Geyssant A, Sassard J. [Radioimmunoassay of angiotensin I. Its application to measurement of plasma renin activity]. LYON MEDICAL 1972; 227:1135-41. [PMID: 4342929] [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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566
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Vincent M, Remond G, Poignant JC. dl- -(4-Cycloaklyl(cyclohexen-1-yl)alkanoic acids and derivatives as antiinflammatory and antiarthritic compounds. J Med Chem 1972; 15:75-9. [PMID: 5007097 DOI: 10.1021/jm00271a020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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567
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Vincent M. [Biological bases of antibiotherapy]. JOURNAL DE MEDECINE DE LYON 1971; 52:1146-55. [PMID: 5135882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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568
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Milon H, Froment A, Dupont JC, Dupont J, Vincent M. [Blood pressure distributions in children (study of a group of 520 school-age boys)]. BULLETIN DE L'INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE 1970; 25:1227-36. [PMID: 5512242] [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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569
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Froment A, Milon H, Vincent M, Dupont JC, Dupont J. [Arterial pressure in school-age children. Relation to several variables]. BULLETIN DE L'INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE 1970; 25:1237-48. [PMID: 5512243] [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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570
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Sassard J, Vincent M, Duquesnel J. [Plasma renin activity in arterial hypertension of renal origin. Value of collecting by multiple selective catheterization]. LYON MEDICAL 1970; 223:1167-80. [PMID: 5421518] [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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571
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Dupont J, Dupont JC, Froment A, Vincent M. [Respective value of various functional renal exploration methods in hypertensive patients]. LA REVUE LYONNAISE DE MEDECINE 1969; 18:839-46. [PMID: 5402862] [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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572
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Froment A, Dupont J, Milon H, Vincent M. [Clinical pharmacology of natriuretics in arterial hypertension]. LA REVUE LYONNAISE DE MEDECINE 1969; 18:797-806. [PMID: 5402857] [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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573
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Froment A, Vincent M, Milon H, Dupont JC. [Study of habituation during long-term antihypertension therapy]. LA REVUE LYONNAISE DE MEDECINE 1969; 18:807-13. [PMID: 5402858] [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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574
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Sassard J, Loras B, Poncet J, Vincent M, Gharib C. [Study of renin activity and aldosterone secretion in 7 cases of adrenal hyperplasia due to 21-hydroxylase deficiency]. ANNALES D'ENDOCRINOLOGIE 1969; 30:822-30. [PMID: 5384992] [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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575
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Soyfer JC, Vincent M, Busson F. [Gilletiodendron glandulosum (Portères) J. Leonard (Césalpiniacées). Identification of a neurotoxic principle]. MEDECINE TROPICALE : REVUE DU CORPS DE SANTE COLONIAL 1969; 29:615-6. [PMID: 5400836] [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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576
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Cier JF, Sassard J, Zech P, Vincent M, Gharib C. [Influence of ion factors on the pressor action of exogenous angiotensin in humans]. ARCHIVES INTERNATIONALES DE PHARMACODYNAMIE ET DE THERAPIE 1969; 178:357-69. [PMID: 4311267] [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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577
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Froment A, Sassard J, Bizollon C, Vincent M. [Does glycyrrhizin act by stimulation of the adrenal cortex? Biologic simulation of Conn's syndrome by glycyrrhizin poisoning]. LA REVUE LYONNAISE DE MEDECINE 1968; 17:785-90. [PMID: 5712170] [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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578
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Nari J, Ricard J, Vincent M. [Contribution to the study of the formation of various compounds of Raifort peroxidase in presence of beta-indolylacetic acid]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1967; 264:1108-11. [PMID: 4963831] [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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579
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Maillard J, Vincent M, Delaunay P, Vo-Van-Tri. [Synthesis and pharmacodynamic properties of phloroglucinol derivatives]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1966; 262:933-6. [PMID: 4956271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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580
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Garmier R, Vincent M. [Immunologic pregnancy test with rapid reading in 2 minutes]. BULLETIN DE LA FEDERATION DES SOCIETES DE GYNECOLOGIE ET DOBSTETRIQUE DE LANGUE FRANCAISE 1965; 17:454-5. [PMID: 5866405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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581
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Vincent M. Demonstrations over Closed Circuit Television. Am J Nurs 1964. [DOI: 10.2307/3452778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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582
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Vincent M, Jans C, Ghesquiere J. The new-born pigmy and his mother. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 1962; 20:237-47. [PMID: 13997344 DOI: 10.1002/ajpa.1330200308] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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