Ariaratnam C A, Meyer W P, Perera G. Eddleston M, Kuleratne S A M, Attapattu W, Sheriff R, Richards A M, Theakston R D G  & Warrell D A (1999). A new manospecific ovine Fab fragment antivenom for treatment of envenoming by the Sri Lankan Russell’s viper (Daboia ruselii russelii): a preliminary dose – finding and pharmacokinetic study. American Journal of Tropical Medicine and Hygiene, 61, 259-265.