Zana C Somda , Martin I Meltzer , Helen N Perry , Nancy E Messonnier , Usman Abdulmumini , Goitom Mebrahtu , Massambou Sacko , Kandioura Touré , Salimata Ouédraogo Ki , Tuoyo Okorosobo , Wondimagegnehu Alemu and Idrissa Sow
Cost Effectiveness and Resource Allocation 2009, 7:1doi:10.1186/1478-7547-7-1