Li, W;    Lao-Kaim, NP;    Roussakis, AA;    Martin-Bastida, A;    Valle-Guzman, N;    Paul, G;    Loane, C;                     ... Piccini, P; + view all <#>        Li, W;  Lao-Kaim, NP;  Roussakis, AA;  Martin-Bastida, A;  Valle-Guzman, N;  Paul, G;  Loane, C;  Widner, H;  Politis, M;  Foltynie, T;  Barker, RA;  Piccini, P;   - view fewer <#>    (2017)    C-11-PE2I and F-18-Dopa PET for Assessing Progression Rate in Parkinson's: A Longitudinal Study.                   Movement Disorders , 33  (1)   pp. 117-127.    10.1002/mds.27183 <https://doi.org/10.1002/mds.27183>.