Original Investigation
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February 11, 2013
Cary P. Gross, MD; Jessica B. Long, MPH; Joseph S. Ross, MD, MHS; Maysa M. Abu-Khalaf, MD; Rong Wang, PhD; Brigid K. Killelea, MD, MPH; Heather T. Gold, PhD; Anees B. Chagpar, MD, MA, MPH, MSc; Xiaomei Ma, PhD
JAMA Intern Med. 2013;173(3):220-226. doi:10.1001/jamainternmed.2013.1397.