Severe and fatal mass attacks by 'killer' bees (Africanized honey bees--Apis mellifera scutellata) in Brazil: clinicopathological studies with measurement of serum venom concentrat... by França, F, Benvenuti, L, Fan, H, Santos, D, Hain, S, Picchi-Martins, F, Cardoso, J, Kamiguti, A, Theakston, R, Warrell, D