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Jordan K, Ong BN, Croft P.Jordan K, et al.J Epidemiol Community Health. 2003 Feb;57(2):109-13. doi: 10.1136/jech.57.2.109.J Epidemiol Community Health. 2003.PMID: 12540685Free PMC article.
Dunn KM, Jordan K, Croft PR.Dunn KM, et al.J Clin Epidemiol. 2003 Jan;56(1):10-6. doi: 10.1016/s0895-4356(02)00567-x.J Clin Epidemiol. 2003.PMID: 12589865Clinical Trial.
Dunn KM, Jordan K, Lacey RJ, Shapley M, Jinks C.Dunn KM, et al.Am J Epidemiol. 2004 Jun 1;159(11):1087-94. doi: 10.1093/aje/kwh141.Am J Epidemiol. 2004.PMID: 15155293
Jordan K, Dunn KM, Lewis M, Croft P.Jordan K, et al.J Clin Epidemiol. 2006 Jan;59(1):45-52. doi: 10.1016/j.jclinepi.2005.03.018. Epub 2005 Nov 4.J Clin Epidemiol. 2006.PMID: 16360560