Subjects: EXPERIMENTAL design; STATISTICS; ANALYSIS of varianceGERMANY
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Subjects: ANTIDEPRESSANTS; DRUG side effects; AMITRIPTYLINE
Subjects: AMITRIPTYLINE; RAPID eye movement sleep; IMMUNOSUPPRESSION
Subjects: *PSYCHOTHERAPY; *PSYCHOSOMATIC disorders; *QUESTIONNAIRES
Subjects: *EXPERIMENTAL design; *PLACEBOS; *SLEEP