title: Letter: Intravenous thyrotrophin-releasing hormone in Parkinson's disease.
mesh_terms: D000368:Aged; D002986:Clinical Trials as Topic; D004295:Dihydroxyphenylalanine / Q000627:therapeutic use; D004357:Drug Synergism; D004359:Drug Therapy, Combination; D006801:Humans; D007275:Injections, Intravenous; D008875:Middle Aged; D010300:Parkinson Disease / Q000097:blood / Q000188:drug therapy*; D013960:Thyroid Function Tests; D013972:Thyrotropin / Q000097:blood; D013973:Thyrotropin-Releasing Hormone / Q000008:administration & dosage* / Q000627:therapeutic use; D014284:Triiodothyronine / Q000097:blood
chemical_list: D014284:Triiodothyronine; D013973:Thyrotropin-Releasing Hormone; D004295:Dihydroxyphenylalanine; D013972:Thyrotropin