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Nielsen A, Munk C, Liaw KL, Kjaer SK.Nielsen A, et al. Among authors: kjaer sk.Eur J Cancer Prev. 2009 Jun;18(3):236-9. doi: 10.1097/CEJ.0b013e3283240607.Eur J Cancer Prev. 2009.PMID: 19491611Clinical Trial.
Nielsen A, Kjaer SK, Munk C, Osler M, Iftner T.Nielsen A, et al. Among authors: kjaer sk.J Med Virol. 2010 Apr;82(4):616-23. doi: 10.1002/jmv.21750.J Med Virol. 2010.PMID: 20166190