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Original Investigation |  FREE
Andrew Nicol, MD; Lisa Marie Knowlton, MD, MPH; Nadine Schuurman, PhD; et al.
JAMA Surg. 2014;149(6):549-556. doi:10.1001/jamasurg.2013.5267.
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Invited Commentary | 
Michael E. Zenilman, MD
JAMA Surg. 2013;148(12):1138-1139. doi:10.1001/jamasurg.2013.2765.

Original Investigation |  FREE
Teresa S. Jones, MD; Christina L. Dunn, BA; Daniel S. Wu, MD; et al.
JAMA Surg. 2013;148(12):1132-1138. doi:10.1001/jamasurg.2013.2741.

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