Ross, T. M., Hairong, L., Chia, B. S., Hill, E., Weirback, H., & Zimmer, S. (2011). Prevalence of antibodies against seasonal influenza A and B viruses during the 2009-2010 and 2010-2011 influenza seasons in residents of Pittsburgh, PA, USA. Public Library of Science.

Ross, Ted M., Lu Hairong, Bing Shao Chia, Elaise Hill, Heather Weirback, and Shanta Zimmer. Prevalence of Antibodies against Seasonal Influenza A and B Viruses During the 2009-2010 and 2010-2011 Influenza Seasons in Residents of Pittsburgh, PA, USA. Public Library of Science, 2011.

Ross, Ted M., et al. Prevalence of Antibodies against Seasonal Influenza A and B Viruses During the 2009-2010 and 2010-2011 Influenza Seasons in Residents of Pittsburgh, PA, USA. Public Library of Science, 2011.