[Methodologic aspects of clinical research].
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
D010919:Placebos
Aspetti metodologici della ricerca clinica.