title: Clinical effects of L-threo-3,4-dihydroxyphenylserine in cases of parkinsonism and pure akinesia.
mesh_terms: D000328:Adult; D000368:Aged; D000978:Antiparkinson Agents / Q000627:therapeutic use*; D015103:Droxidopa / Q000031:analogs & derivatives* / Q000627:therapeutic use; D004341:Drug Evaluation; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009048:Motor Skills / Q000187:drug effects; D010300:Parkinson Disease / Q000188:drug therapy*; D010302:Parkinson Disease, Secondary / Q000188:drug therapy; D012694:Serine / Q000031:analogs & derivatives*; D012791:Shy-Drager Syndrome / Q000188:drug therapy
chemical_list: D000978:Antiparkinson Agents; D012694:Serine; D007980:Levodopa; D015103:Droxidopa