title: Letter: Treatment of unipolar depression.
mesh_terms: D003863:Depression / Q000188:drug therapy / Q000628:therapy*; D004565:Electroconvulsive Therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009536:Niacinamide / Q000627:therapeutic use; D014364:Tryptophan / Q000627:therapeutic use*
chemical_list: D009536:Niacinamide; D014364:Tryptophan