Khan K, Freifeld CC, Wang J, Mekaru SR, Kossowsky D, Sonricker AL, Hu W, Sears J, Chan A, Brownstein JS.
CMAJ
http://www.ncbi.nlm.nih.gov/pubmed/20181726
182(6):579-83
https://connects.catalyst.harvard.edu/Profiles/profile/582162