Hilleman MR. Kolovoz 2002. Realities and enigmas of human viral influenza: pathogenesis, epidemiology and control. Vaccine. 20 (25–26): 3068–87. doi:10.1016/S0264-410X(02)00254-2. PMID12163258
Hilleman MR. Kolovoz 2002. Realities and enigmas of human viral influenza: pathogenesis, epidemiology and control. Vaccine. 20 (25–26): 3068–87. doi:10.1016/S0264-410X(02)00254-2. PMID12163258