@article {622761,
	title = {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},
	journal = {BMC infectious diseases},
	volume = {18},
	number = {403},
	year = {2018},
	author = {K. Baltrusaitis and J. Brownstein and S. Scarpino and E. Bakota and A. Crawley and J. Conidi and J. Gunn and J. Gray and Zink, A. and Santillana, M.}
}
