title: Variations in the "on-off" phenomenon.
mesh_terms: D065105:Aromatic Amino Acid Decarboxylase Inhibitors; D003342:Corpus Striatum / Q000503:physiopathology; D004791:Enzyme Inhibitors / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D007980:Levodopa / Q000008:administration & dosage / Q000009:adverse effects*; D009069:Movement Disorders / Q000139:chemically induced* / Q000209:etiology / Q000517:prevention & control; D010300:Parkinson Disease / Q000188:drug therapy* / Q000503:physiopathology; D013378:Substantia Nigra / Q000503:physiopathology
chemical_list: D065105:Aromatic Amino Acid Decarboxylase Inhibitors; D004791:Enzyme Inhibitors; D007980:Levodopa