@article{Ginsberg2009,
author = {Ginsberg, J. and Mohebbi, M.H. and Patel, R.S. and Brammer, L. and Smolinski, M.S. and Brilliant, L.},
title= {Detecting influenza epidemics using search engine query data},
year = {2009},
doi = {10.1038/nature07634},
volume = {457},
number = {7232},
pages = {10121014},
}