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Research Letter | 
Nynne Nyboe Andersen, MD; Björn Pasternak, MD, PhD; Mikael Andersson, MSc; et al.
JAMA Intern Med. 2015;175(12):1990-1992. doi:10.1001/jamainternmed.2015.5396.

Perspective | 
Anna Petroni
JAMA Intern Med. 2013;173(13):1173. doi:10.1001/jamainternmed.2013.6509.

Original Investigation |  FREE
Richard A. Hughes, FRCP; Judith Charlton, MSc; Radoslav Latinovic, BSc; et al.
Arch Intern Med. 2006;166(12):1301-1304. doi:10.1001/archinte.166.12.1301.

Review Article |  FREE
Steven L. Galetta, MD; Clyde Markowitz, MD; Andrew G. Lee, MD
Arch Intern Med. 2002;162(19):2161-2169. doi:10.1001/archinte.162.19.2161.

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