(August 2002). Realities and enigmas of human viral influenza: pathogenesis, epidemiology and control. Vaccine20 (25–26): 3068–87. PMID12163258. DOI: 10.1016/S0264-410X(02)00254-2.
(August 2002). Realities and enigmas of human viral influenza: pathogenesis, epidemiology and control. Vaccine20 (25–26): 3068–87. PMID12163258. DOI: 10.1016/S0264-410X(02)00254-2.