Presence of a hypocalcemic factor in the ultimobranchial gland of the snake.
D000818:Animals; D002116:Calcitonin / Q000494:pharmacology*; D002118:Calcium / Q000097:blood*; D004305:Dose-Response Relationship, Drug; D005260:Female; D008297:Male; D051381:Rats; D012911:Snakes; D013961:Thyroid Gland; D014020:Tissue Extracts / Q000494:pharmacology; D014460:Ultimobranchial Body / Q000032:analysis*
D014020:Tissue Extracts; D002116:Calcitonin; D002118:Calcium