Letter: Chorea and torsion in parkinsonism.
D002819:Chorea / Q000139:chemically induced*; D006801:Humans; D007980:Levodopa / Q000008:administration & dosage / Q000009:adverse effects*; D010300:Parkinson Disease / Q000188:drug therapy*; D014102:Torsion Abnormality / Q000139:chemically induced*
D007980:Levodopa