title: Fractionation of Vipera ammodytes venom and seasonal variation of its composition.
mesh_terms: D000818:Animals; D001344:Autopsy; D001683:Biological Clocks; D001794:Blood Pressure / Q000187:drug effects; D002848:Chromatography, DEAE-Cellulose; D002850:Chromatography, Gel; D004589:Electrophoresis, Disc; D004591:Electrophoresis, Polyacrylamide Gel; D006470:Hemorrhage / Q000139:chemically induced; D007022:Hypotension / Q000139:chemically induced; D007274:Injections, Intraperitoneal; D007928:Lethal Dose 50; D051379:Mice; D008970:Molecular Weight; D010447:Peptide Hydrolases / Q000032:analysis; D012621:Seasons; D012911:Snakes; D014462:Ultrafiltration; D014688:Venoms / Q000032:analysis* / Q000633:toxicity
chemical_list: D014688:Venoms; D010447:Peptide Hydrolases