title: Electroretinographic changes in patients with parkinsonism treated with various classes of antiparkinsonian drugs.
mesh_terms: D000547:Amantadine / Q000627:therapeutic use; D000978:Antiparkinson Agents / Q000627:therapeutic use*; D004596:Electroretinography; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use; D010276:Parasympatholytics / Q000627:therapeutic use; D010300:Parkinson Disease / Q000188:drug therapy / Q000503:physiopathology*; D011954:Receptors, Dopamine / Q000502:physiology*; D012160:Retina / Q000503:physiopathology*
chemical_list: D000978:Antiparkinson Agents; D010276:Parasympatholytics; D011954:Receptors, Dopamine; D007980:Levodopa; D000547:Amantadine