Placebo-controlled studies in depression: necessity and feasibility.
Paykel
E S
ES
University of Cambridge Clinical School, Addenbrooke's Hospital, United Kingdom.
D000928:Antidepressive Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003866:Depressive Disorder / Q000188:drug therapy* / Q000523:psychology; D006801:Humans; D010919:Placebos; D012107:Research Design
D000928:Antidepressive Agents; D010919:Placebos