Independent impact assessment of the World Bank-funded Nigeria Avian Influenza Control and Human Pandemic Preparedness and Response Project (NAICP) - Perry, Brian D.; Randolph, Thomas F.; Bett, Bernard K.; Grace, Delia; Globig, A.; Fadiga, M.L.; Sones, Keith R.; Henning, J.; Pali, Pamela N.; Poole, Elizabeth J.; Hannah, H.; Ekanem, E.; et al. (International Livestock Research Institute, 2011)