Failures of L-dopa.
D000368:Aged; D000375:Aging; D003863:Depression / Q000139:chemically induced; D004295:Dihydroxyphenylalanine / Q000008:administration & dosage / Q000009:adverse effects* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008508:Medication Errors; D008875:Middle Aged; D009069:Movement Disorders / Q000139:chemically induced; D010300:Parkinson Disease / Q000188:drug therapy*; D014202:Tremor / Q000188:drug therapy
D004295:Dihydroxyphenylalanine