Product information: IPSER AFRIQUE PASTEUR. Pasteur Merieux MSD, Lyon, France, September 17, 1999. "> 572.BITIS LACHESISspecific 573.DENDROASPIS SPECIESspecific 574.ECHIS CARINATUSspecific 575.NAJA HAJEspecific 576.NAJA MELANOLEUCAspecific 577.NAJA NIGRICOLLISspecific 57