[Vitamin B 12 uptake and its problems. Significance of rectal administration].
D000285:Administration, Rectal; D001669:Biochemical Phenomena; D045728:Corrinoids; D006397:Hematinics; D014805:Vitamin B 12 / Q000378:metabolism*
D045728:Corrinoids; D006397:Hematinics; D014805:Vitamin B 12
VITAMIN B 12/metabolism