title: Radioimmunoassay for nortriptyline and amitriptyline.
mesh_terms: D000639:Amitriptyline / Q000097:blood*; D006801:Humans; D007099:Imipramine; D009661:Nortriptyline / Q000097:blood*; D011863:Radioimmunoassay / Q000379:methods; D014316:Tritium
chemical_list: D014316:Tritium; D000639:Amitriptyline; D009661:Nortriptyline; D007099:Imipramine