Highly pathogenic avian influenza virus (H5N1) in frozen duck carcasses, Germany, 2007.
Harder TC, Teuffert J, Starick E, Gethmann J, Grund C, Fereidouni S, Durban M, Bogner KH, Neubauer-Juric A, Repper R, et al. Emerg Infect Dis. 2009 Feb; 15(2):272-9.