Developing better digital health measures of Parkinson's disease using free living data and a crowdsourced data analysis challenge. oleh Solveig K Sieberts, Henryk Borzymowski, Yuanfang Guan, Yidi Huang, Ayala Matzner, Alex Page, Izhar Bar-Gad, Brett Beaulieu-Jones, Yuval El-Hanani, Jann Goschenhofer, Monica Javidnia, Mark S Keller, Yan-Chak Li, Mohammed Saqib, Greta Smith, Ana Stanescu, Charles S Venuto, Robert Zielinski, BEAT-PD DREAM Challenge Consortium, Arun Jayaraman, Luc J W Evers, Luca Foschini, Alex Mariakakis, Gaurav Pandey, Nicholas Shawen, Phil Synder, Larsson Omberg