Placebo-controlled trials and the logic of clinical purpose.
D035061:Control Groups; D008192:Deception; D064420:Drug-Related Side Effects and Adverse Reactions; D026689:Ethical Analysis; D004989:Ethics; D006805:Human Experimentation; D006801:Humans; D007258:Informed Consent; D016134:Organizational Policy; D004364:Pharmaceutical Preparations; D010820:Physicians; D010919:Placebos; D011897:Random Allocation; D012015:Reference Standards; D012107:Research Design; D012306:Risk; D018570:Risk Assessment; D012952:Societies; D014486:United States Food and Drug Administration
American Academy of Pediatrics; American College of Gastroenterology; Biomedical and Behavioral Research