Puzelli, S., Facchini, M., Spagnolo, D., De Marco, M. A., Calzoletti, L., Zanetti, A., . . . Donatelli, I. (2010). Transmission of Hemagglutinin D222G Mutant Strain of Pandemic (H1N1) 2009 Virus. Centers for Disease Control and Prevention.
Chicago-tyylinen lähdeviittausPuzelli, Simona, et al. Transmission of Hemagglutinin D222G Mutant Strain of Pandemic (H1N1) 2009 Virus. Centers for Disease Control and Prevention, 2010.
MLA-viitePuzelli, Simona, et al. Transmission of Hemagglutinin D222G Mutant Strain of Pandemic (H1N1) 2009 Virus. Centers for Disease Control and Prevention, 2010.
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