Discordant detection of avian influenza virus subtypes in time and space between poultry and wild birds; Towards improvement of surveillance programs. - Verhagen, Josanne H.; Lexmond, Pascal; Vuong, Oanh; Schutten, Martin; Guldemeester, Judith; Osterhaus, Albert D. M. E.; Elbers, Armin R. W.; Slaterus, Roy; Hornman, Menno; Koch, Guus; Fouchier, Ron A. M. (PLoS ONE, 2017)