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Freifeld CC, Mandl KD, Reis BY, Brownstein JS.Freifeld CC, et al. Among authors: brownstein js.J Am Med Inform Assoc. 2008 Mar-Apr;15(2):150-7. doi: 10.1197/jamia.M2544. Epub 2007 Dec 20.J Am Med Inform Assoc. 2008.PMID: 18096908Free PMC article.
Dasgupta N, Mandl KD, Brownstein JS.Dasgupta N, et al. Among authors: brownstein js.PLoS One. 2009 Nov 18;4(11):e7758. doi: 10.1371/journal.pone.0007758.PLoS One. 2009.PMID: 19924221Free PMC article.