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Balk EM, Lau J, Goudas LC, Jordan HS, Kupelnick B, Kim LU, Karas RH.Balk EM, et al.Ann Intern Med. 2003 Oct 21;139(8):670-82. doi: 10.7326/0003-4819-139-8-200310210-00011.Ann Intern Med. 2003.PMID: 14568856Review.
Balk E, Raman G, Chung M, Ip S, Tatsioni A, Alonso A, Chew P, Gilbert SJ, Lau J.Balk E, et al.Ann Intern Med. 2006 Dec 19;145(12):901-12. doi: 10.7326/0003-4819-145-12-200612190-00143. Epub 2006 Oct 24.Ann Intern Med. 2006.PMID: 17062633Free article.Review.
Russell R, Chung M, Balk EM, Atkinson S, Giovannucci EL, Ip S, Lichtenstein AH, Mayne ST, Raman G, Ross AC, Trikalinos TA, West KP Jr, Lau J.Russell R, et al. Among authors: balk em.Am J Clin Nutr. 2009 Mar;89(3):728-33. doi: 10.3945/ajcn.2008.27154. Epub 2009 Jan 28.Am J Clin Nutr. 2009.PMID: 19176732Free PMC article.