Double-blind assessment of therapeutic efficacy in clinical trials.
D002986:Clinical Trials as Topic / Q000592:standards*; D004311:Double-Blind Method / Q000592:standards*; D005764:Gastroesophageal Reflux / Q000188:drug therapy; D006801:Humans; D011897:Random Allocation; D012107:Research Design / Q000592:standards*; D013812:Therapeutics / Q000592:standards*