title: [The controlled clinical trial. Methodological elements].
mesh_terms: D000367:Age Factors; D002986:Clinical Trials as Topic; D004358:Drug Therapy; D005260:Female; D005602:France; D006801:Humans; D008297:Male; D008722:Methods; D010919:Placebos; D012737:Sex Factors; D013223:Statistics as Topic; D011795:Surveys and Questionnaires
chemical_list: D010919:Placebos
vernacular_title: L'essai clinique contrôlé. Eléments méthodologiques.