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Van Kerkhove MD, Hirve S, Koukounari A, Mounts AW; H1N1pdm serology working group.Van Kerkhove MD, et al.Influenza Other Respir Viruses. 2013 Sep;7(5):872-86. doi: 10.1111/irv.12074. Epub 2013 Jan 21.Influenza Other Respir Viruses. 2013.PMID: 23331969Free PMC article.Review.
Randen I, Thompson KM, Natvig JB, Førre O, Waalen K.Randen I, et al. Among authors: waalen k.Clin Exp Immunol. 1989 Oct;78(1):13-8.Clin Exp Immunol. 1989.PMID: 2805416Free PMC article.