Citation:
Baltrusaitis K, Brownstein J, Scarpino S, Bakota E, Crawley A, Conidi J, Gunn J, Gray J, Zink A, Santillana M. Comparison of crowd-sourced, electronic health records based, and traditional health-care based influenza-tracking systems at multiple spatial resolutions in the United States of America. BMC infectious diseases. 2018;18 (403).