Gray, R., Patel, S., Ives, N., Rick, C., Woolley, R., Muzerengi, S., Gray, A., Jenkinson, C., McIntosh, E., Wheatley, K., Williams, A., & Clarke, C. E. (2022). Long-term Effectiveness of Adjuvant Treatment with Catechol-O-Methyltransferase or Monoamine Oxidase B Inhibitors Compared with Dopamine Agonists among Patients with Parkinson Disease Uncontrolled by Levodopa Therapy: The PD MED Randomized Clinical Trial. JAMA Neurology, 79(2), 131-140. https://doi.org/10.1001/jamaneurol.2021.4736