Media type: E-Article Title: Changing Selective Pressure during Antigenic Changes in Human Influenza H3 Contributor: Blackburne, Benjamin P.; Hay, Alan J.; Goldstein, Richard A. imprint: Public Library of Science (PLoS), 2008 Published in: PLoS Pathogens Language: English DOI: 10.1371/journal.ppat.1000058 ISSN: 1553-7374 Origination: Footnote: Access State: Open Access