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«Clonal vaccinia virus grown in cell culture fully protects monkeys from lethal monkeypox challenge». Vaccine26 (4): 581–88. January 2008. doi:10.1016/j.vaccine.2007.10.063. PMID18077063.
«Emerging diseases-the monkeypox epidemic in the Democratic Republic of the Congo». Clinical Microbiology and Infection22 (8): 658–59. August 2016. doi:10.1016/j.cmi.2016.07.004. PMID27404372.
«Clonal vaccinia virus grown in cell culture fully protects monkeys from lethal monkeypox challenge». Vaccine26 (4): 581–88. January 2008. doi:10.1016/j.vaccine.2007.10.063. PMID18077063.