L-dopa treatment failure: explanation and correction.
D000863:Antacids / Q000627:therapeutic use; D002247:Carbon Isotopes; D004295:Dihydroxyphenylalanine / Q000378:metabolism / Q000627:therapeutic use*; D005769:Gastrointestinal Motility; D006801:Humans; D007408:Intestinal Absorption; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy*; D013270:Stomach / Q000503:physiopathology
D000863:Antacids; D002247:Carbon Isotopes; D004295:Dihydroxyphenylalanine