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Boucher CA, Tersmette M, Lange JM, Kellam P, de Goede RE, Mulder JW, Darby G, Goudsmit J, Larder BA.Boucher CA, et al. Among authors: kellam p.Lancet. 1990 Sep 8;336(8715):585-90. doi: 10.1016/0140-6736(90)93391-2.Lancet. 1990.PMID: 1975378
Kellam P, Boucher CA, Larder BA.Kellam P, et al.Proc Natl Acad Sci U S A. 1992 Mar 1;89(5):1934-8. doi: 10.1073/pnas.89.5.1934.Proc Natl Acad Sci U S A. 1992.PMID: 1371886Free PMC article.