Conversely, no difference emerged in the prevalence of dopaminergic medications used in PD and PDPS groups; specifically, 11/15 PD patients and 9/15 PDPS patients were on dopamine agonists, 10/15 PD and 9/15 PDPS were on MAO-B inhibitors, and 12/15 PD and 13/15 PDPS were on levodopa. The gene discussed is MAOB; the disease is Parkinson disease.