title: Editorial: Failure to respond to levodopa.
mesh_terms: D002262:Carboxy-Lyases / Q000037:antagonists & inhibitors; D004295:Dihydroxyphenylalanine / Q000008:administration & dosage / Q000627:therapeutic use*; D004361:Drug Tolerance; D006801:Humans; D007408:Intestinal Absorption; D010300:Parkinson Disease / Q000175:diagnosis / Q000188:drug therapy*
chemical_list: D004295:Dihydroxyphenylalanine; D002262:Carboxy-Lyases