title: [Methodologic aspects of clinical research].
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D004311:Double-Blind Method; D004358:Drug Therapy / Q000592:standards*; D006801:Humans; D010919:Placebos; D011336:Probability; D011897:Random Allocation
chemical_list: D010919:Placebos
vernacular_title: Aspetti metodologici della ricerca clinica.