title: Older treatment may be best overall for treating new Parkinson's.
mesh_terms: D000978:Antiparkinson Agents / Q000008:administration & dosage*; D018849:Controlled Clinical Trials as Topic; D006801:Humans; D007980:Levodopa / Q000008:administration & dosage*; D008297:Male; D020734:Parkinsonian Disorders / Q000188:drug therapy*; D011597:Psychomotor Performance / Q000187:drug effects*; D013647:Task Performance and Analysis
chemical_list: D000978:Antiparkinson Agents; D007980:Levodopa