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Détail de l'auteur
Auteur R. W. SMITHELLS |
Documents disponibles écrits par cet auteur (4)
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Fetal Alcohol Syndrome / R. W. SMITHELLS in Developmental Medicine & Child Neurology, 21-2 (April 1979)
[article]
Titre : Fetal Alcohol Syndrome Type de document : Texte imprimé et/ou numérique Auteurs : R. W. SMITHELLS, Auteur Année de publication : 1979 Article en page(s) : p.244-248 Langues : Anglais (eng) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=489
in Developmental Medicine & Child Neurology > 21-2 (April 1979) . - p.244-248[article] Fetal Alcohol Syndrome [Texte imprimé et/ou numérique] / R. W. SMITHELLS, Auteur . - 1979 . - p.244-248.
Langues : Anglais (eng)
in Developmental Medicine & Child Neurology > 21-2 (April 1979) . - p.244-248
Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=489 Oral contraceptives and birth defects / R. W. SMITHELLS in Developmental Medicine & Child Neurology, 23-3 (June 1981)
[article]
Titre : Oral contraceptives and birth defects Type de document : Texte imprimé et/ou numérique Auteurs : R. W. SMITHELLS, Auteur Année de publication : 1981 Article en page(s) : p.369-372 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : PIP: Although OCs (oral contraceptives) are not designed to be taken during pregnancy, in Europe and the U.S. they are taken by 2-5% of women in early pregnancy and by 1/4-1/3 of women 3-4 months prior to conception. The effects of OCs on folic acid and other vitamin metabolism are well known and provide a theoretical basis for possible teratogenicity, even when stopped prior to conception. Both hormone support therapy for threatened abortions and hormonal pregnancy tests have been abandoned in recent years, the first because it proved inefficacious, the second because there are better alternatives available. In neither of these cases were sex hormones shown to be teratogenic. Most cohort (prospective) and many case-control (retrospective) studies have shown no association between OC use and birth defects. Case-control methodology can be criticized because of recall bias and because of the difficulty of choosing entirely matched controls. Several studies have shown OC users to have characteristics slightly different from the general population, e.g., they are younger, more often unmarried, and are more likely to smoke during pregnancy. Any of these characteristics might influence the occurrence of teratogenicity. It is impossible to prove that OCs constitute a low-level teratogen. The author considers them nonteratogenic. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=521
in Developmental Medicine & Child Neurology > 23-3 (June 1981) . - p.369-372[article] Oral contraceptives and birth defects [Texte imprimé et/ou numérique] / R. W. SMITHELLS, Auteur . - 1981 . - p.369-372.
Langues : Anglais (eng)
in Developmental Medicine & Child Neurology > 23-3 (June 1981) . - p.369-372
Index. décimale : PER Périodiques Résumé : PIP: Although OCs (oral contraceptives) are not designed to be taken during pregnancy, in Europe and the U.S. they are taken by 2-5% of women in early pregnancy and by 1/4-1/3 of women 3-4 months prior to conception. The effects of OCs on folic acid and other vitamin metabolism are well known and provide a theoretical basis for possible teratogenicity, even when stopped prior to conception. Both hormone support therapy for threatened abortions and hormonal pregnancy tests have been abandoned in recent years, the first because it proved inefficacious, the second because there are better alternatives available. In neither of these cases were sex hormones shown to be teratogenic. Most cohort (prospective) and many case-control (retrospective) studies have shown no association between OC use and birth defects. Case-control methodology can be criticized because of recall bias and because of the difficulty of choosing entirely matched controls. Several studies have shown OC users to have characteristics slightly different from the general population, e.g., they are younger, more often unmarried, and are more likely to smoke during pregnancy. Any of these characteristics might influence the occurrence of teratogenicity. It is impossible to prove that OCs constitute a low-level teratogen. The author considers them nonteratogenic. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=521 Prenatal influences in psychosomatic disorders / R. W. SMITHELLS in Developmental Medicine & Child Neurology, 21-4 (August 1979)
[article]
Titre : Prenatal influences in psychosomatic disorders Type de document : Texte imprimé et/ou numérique Auteurs : R. W. SMITHELLS, Auteur Année de publication : 1979 Article en page(s) : p.530-534 Langues : Anglais (eng) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=499
in Developmental Medicine & Child Neurology > 21-4 (August 1979) . - p.530-534[article] Prenatal influences in psychosomatic disorders [Texte imprimé et/ou numérique] / R. W. SMITHELLS, Auteur . - 1979 . - p.530-534.
Langues : Anglais (eng)
in Developmental Medicine & Child Neurology > 21-4 (August 1979) . - p.530-534
Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=499 Results of treatment / R. W. SMITHELLS in Developmental Medicine & Child Neurology, 24-5 (October 1982)
[article]
Titre : Results of treatment Type de document : Texte imprimé et/ou numérique Auteurs : R. W. SMITHELLS, Auteur ; Paul H. PEARSON, Auteur Année de publication : 1982 Article en page(s) : p.702-703 Langues : Anglais (eng) Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=532
in Developmental Medicine & Child Neurology > 24-5 (October 1982) . - p.702-703[article] Results of treatment [Texte imprimé et/ou numérique] / R. W. SMITHELLS, Auteur ; Paul H. PEARSON, Auteur . - 1982 . - p.702-703.
Langues : Anglais (eng)
in Developmental Medicine & Child Neurology > 24-5 (October 1982) . - p.702-703
Index. décimale : PER Périodiques Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=532