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Editorial | 
Anne R. Cappola, MD, ScM; Susan J. Mandel, MD, MPH
JAMA. 2013;309(14):1529-1530. doi:10.1001/jama.2013.3620.

Original Contribution |  FREE
Mingzhao Xing, MD, PhD; Ali S. Alzahrani, MD; Kathryn A. Carson, ScM; et al.
JAMA. 2013;309(14):1493-1501. doi:10.1001/jama.2013.3190.
Includes: Supplemental Content

Lab Reports | 
Tracy Hampton, PhD
JAMA. 2013;309(9):865. doi:10.1001/jama.2013.1844.

Preliminary Communication |  FREE
Frank Weber, MD; Yaomin Xu, MS; Li Zhang, PhD; et al.
JAMA. 2007;297(2):187-195. doi:10.1001/jama.297.2.187.

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