Mechanism and site of vitamin B 12 absorption in suckling rats.
D000375:Aging; D000818:Animals; D000831:Animals, Newborn; D001665:Binding Sites; D003036:Cobalt Isotopes; D006048:Gold Colloid, Radioactive; D007408:Intestinal Absorption; D007421:Intestine, Small; D010873:Pinocytosis; D051381:Rats; D014805:Vitamin B 12 / Q000378:metabolism*
D003036:Cobalt Isotopes; D006048:Gold Colloid, Radioactive; D014805:Vitamin B 12