Carbidopa-levodopa ratio in Parkinson's disease.
D002230:Carbidopa / Q000008:administration & dosage*; D004359:Drug Therapy, Combination; D006801:Humans; D007980:Levodopa / Q000008:administration & dosage*; D010300:Parkinson Disease / Q000188:drug therapy*
D007980:Levodopa; D002230:Carbidopa