WHO recommendations for the viruses used in the 2013-2014 Northern Hemisphere influenza vaccine: Epidemiology, antigenic and genetic characteristics of influenza A(H1N1)pdm09, A(H3N2) and B influenza viruses collected from October 2012 to January 2013 - Barr, I GWriting Committee of the World Health Organization Consultation on Northern Hemisphere Influenza Vaccine Composition for 2013–2014 (Vaccine, 2014)
ohne Seitenzahl.