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Yazdanpanah Y, Sissoko D, Egger M, Mouton Y, Zwahlen M, Chêne G.Yazdanpanah Y, et al. Among authors: zwahlen m.BMJ. 2004 Jan 31;328(7434):249. doi: 10.1136/bmj.37995.435787.A6. Epub 2004 Jan 23.BMJ. 2004.PMID: 14742351Free PMC article.Review.
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Bopp M, Spoerri A, Zwahlen M, Gutzwiller F, Paccaud F, Braun-Fahrländer C, Rougemont A, Egger M.Bopp M, et al. Among authors: zwahlen m.Int J Epidemiol. 2009 Apr;38(2):379-84. doi: 10.1093/ije/dyn042. Epub 2008 Mar 7.Int J Epidemiol. 2009.PMID: 18326512Free article.No abstract available.
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