title: Parkinson's disease, depression, and the on-off phenomenon.
authors.forename: D L
authors.initials: DL
authors.lastname: Friedenberg
authors.forename: J L
authors.initials: JL
authors.lastname: Cummings
mesh_terms: D001971:Bromocriptine / Q000627:therapeutic use; D002230:Carbidopa / Q000009:adverse effects* / Q000627:therapeutic use; D003866:Depressive Disorder / Q000139:chemically induced* / Q000523:psychology; D004338:Drug Combinations / Q000009:adverse effects / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D006801:Humans; D007980:Levodopa / Q000009:adverse effects* / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009048:Motor Skills / Q000187:drug effects*; D010300:Parkinson Disease / Q000188:drug therapy* / Q000523:psychology
chemical_list: D004338:Drug Combinations; C009265:carbidopa, levodopa drug combination; D001971:Bromocriptine; D007980:Levodopa; D002230:Carbidopa