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Invited Commentary | 
Deborah A. Levine, MD, MPH
JAMA Intern Med. 2013;173(17):1619-1620. doi:10.1001/jamainternmed.2013.8090.

Original Investigation |  FREE
Peter Nordström, PhD; Anna Nordström, PhD; Marie Eriksson, PhD; et al.
JAMA Intern Med. 2013;173(17):1612-1618. doi:10.1001/jamainternmed.2013.9079.
Includes: Supplemental Content

Editor's Correspondence | 
Jeffrey T. Kuvin, MD
Arch Intern Med. 1999;159(9):1011. doi:.

Commentary | 
Katherine E. Gundling, MD
Arch Intern Med. 1998;158(20):2185-2186. doi:10.1001/archinte.158.20.2185.

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