web | http://www.amjmed.com/article/S0002-9343(13)00200-3/abstract |
author | Elizabeth A. Penner, MD, MPH, Hannah Buettner, BA |
publication | American Journal of Medicine |
date | 2013-05-16 |
web | Elizabeth A. Penner, MD, MPH, ... | American Journal of Medicine | 2013-05-16 |
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