The determination of vitamin B12-activity in the organs and excreta of sheep. 6. Vitamin B12-activity in portal blood.
D000818:Animals; D001826:Body Fluids; D045728:Corrinoids; D006397:Hematinics; D012756:Sheep; D034561:Sheep, Domestic; D014805:Vitamin B 12 / Q000097:blood*
D045728:Corrinoids; D006397:Hematinics; D014805:Vitamin B 12
VITAMIN B12/in blood