A Systematic Review of the Comparative Epidemiology of Avian and Human Influenza A H5N1 and H7N9 - Lessons and Unanswered Questions. - Bui, C.; Bethmont, A.; Chughtai, A. A.; Gardner, L.; Sarkar, S.; Hassan, S.; Seale, H.; MacIntyre, C. R. (Transboundary & Emerging Diseases, 2016)