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Andrieu N, Duffy SW, Rohan TE, Lê MG, Luporsi E, Gerber M, Renaud R, Zaridze DG, Lifanova Y, Day NE.Andrieu N, et al. Among authors: duffy sw.Br J Cancer. 1995 Sep;72(3):744-51. doi: 10.1038/bjc.1995.404.Br J Cancer. 1995.PMID: 7669588Free PMC article.
Andrieu N, Prevost T, Rohan TE, Luporsi E, Lê MG, Gerber M, Zaridze DG, Lifanova Y, Renaud R, Lee HP, Duffy SW.Andrieu N, et al. Among authors: duffy sw.Int J Epidemiol. 2000 Apr;29(2):214-23. doi: 10.1093/ije/29.2.214.Int J Epidemiol. 2000.PMID: 10817116
Negri E, La Vecchia C, Duffy SW, Bruzzi P, Parazzini F, Day NE.Negri E, et al. Among authors: duffy sw.Int J Cancer. 1990 Mar 15;45(3):428-30. doi: 10.1002/ijc.2910450308.Int J Cancer. 1990.PMID: 2307532