Familial vitamin B12 malabsorption.
D002675:Child, Preschool; D005260:Female; D006801:Humans; D007408:Intestinal Absorption; D007437:Intrinsic Factor / Q000378:metabolism; D008286:Malabsorption Syndromes / Q000235:genetics*; D014805:Vitamin B 12 / Q000378:metabolism*
C036746:intrinsic factor-vitamin B 12 complex; D007437:Intrinsic Factor; D014805:Vitamin B 12