title: The "on-off" syndrome presenting as a conversion disorder.
mesh_terms: D000328:Adult; D003291:Conversion Disorder / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use*; D008297:Male; D010300:Parkinson Disease / Q000175:diagnosis* / Q000188:drug therapy
chemical_list: D007980:Levodopa