Landon, BruceKeating, NancyBarnett, MichaelOnnela, Jukka-PekkaPaul, SudeshnaO’Malley, A. JamesKeegan, ThomasChristakis, Nicholas A.2017-09-062012Landon, Bruce E., Nancy L. Keating, Michael L. Barnett, Jukka-Pekka Onnela, Sudeshna Paul, A. James O’Malley, Thomas Keegan, and Nicholas A. Christakis. 2012. “Variation in Patient-Sharing Networks of Physicians Across the United States.” JAMA 308 (3) (July 18). doi:10.1001/jama.2012.7615.0098-7484http://nrs.harvard.edu/urn-3:HUL.InstRepos:33839949en-USVariation in Patient-Sharing Networks of Physicians Across the United StatesJournal Article2017-09-0610.1001/jama.2012.7615