title: A control group for psychotherapy research in acute depression: one solution to ethical and methodologic issues.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D035061:Control Groups; D003863:Depression / Q000188:drug therapy / Q000628:therapy*; D004992:Ethics, Medical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010342:Patient Acceptance of Health Care; D011613:Psychotherapy; D012107:Research Design