title: Adrenomedullary hormonal studies in three species of Ophidians.
mesh_terms: D000311:Adrenal Glands / Q000032:analysis*; D000818:Animals; D002838:Chromaffin System / Q000032:analysis; D004837:Epinephrine / Q000032:analysis*; D005260:Female; D006651:Histocytochemistry; D009638:Norepinephrine / Q000032:analysis*; D012911:Snakes / Q000378:metabolism*; D013045:Species Specificity
chemical_list: D009638:Norepinephrine; D004837:Epinephrine