title: High serum concentrations of antidepressants in elderly patients.
mesh_terms: D000368:Aged; D000639:Amitriptyline / Q000097:blood*; D003863:Depression / Q000188:drug therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009661:Nortriptyline / Q000097:blood*
chemical_list: D000639:Amitriptyline; D009661:Nortriptyline