Perera, R. A., Riley, S., Ma, S. K., Zhu, H., Guan, Y., & Peiris, J. S. (2011). Seroconversion to Pandemic (H1N1) 2009 Virus and Cross-Reactive Immunity to Other Swine Influenza Viruses. Centers for Disease Control and Prevention.

Perera, Ranawaka A.P.M., Steven Riley, Siu K. Ma, Hua-Chen Zhu, Yi Guan, ja Joseph S.M Peiris. Seroconversion to Pandemic (H1N1) 2009 Virus and Cross-Reactive Immunity to Other Swine Influenza Viruses. Centers for Disease Control and Prevention, 2011.

Perera, Ranawaka A.P.M., et al. Seroconversion to Pandemic (H1N1) 2009 Virus and Cross-Reactive Immunity to Other Swine Influenza Viruses. Centers for Disease Control and Prevention, 2011.