Nutritional vitamin B12 deficiency in an infant.
D000748:Anemia, Macrocytic / Q000209:etiology*; D001942:Breast Feeding; D014676:Diet, Vegetarian; D005492:Folic Acid / Q000097:blood; D006801:Humans; D007223:Infant; D007501:Iron / Q000097:blood; D008297:Male; D008895:Milk, Human / Q000032:analysis; D012546:Schilling Test; D014805:Vitamin B 12 / Q000032:analysis / Q000097:blood; D014806:Vitamin B 12 Deficiency / Q000150:complications*
D005492:Folic Acid; D007501:Iron; D014805:Vitamin B 12