?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Li&rft.au=Li%2C+W&rft.aufirst=W&rft.pages=117-127&rft.title=Movement+Disorders&rft.volume=33&rft.atitle=C-11-PE2I+and+F-18-Dopa+PET+for+Assessing+Progression+Rate+in+Parkinson's%3A+A+Longitudinal+Study&rft.issue=1&rft.issn=1531-8257&rft.date=30+October+2017&rft.genre=article