title: Resistance of the opossum (Didelphis virginiana) to envenomation by snakes of the family Crotalidae.
mesh_terms: D000818:Animals; D004351:Drug Resistance; D006439:Hemodynamics / Q000187:drug effects; D007928:Lethal Dose 50; D009893:Opossums / Q000502:physiology*; D012910:Snake Venoms / Q000494:pharmacology* / Q000633:toxicity*; D012911:Snakes; D013045:Species Specificity; D013997:Time Factors
chemical_list: D012910:Snake Venoms