Pernicious anemia in the second decade of life.
D000293:Adolescent; D000752:Anemia, Pernicious / Q000097:blood / Q000276:immunology / Q000473:pathology; D000906:Antibodies / Q000032:analysis; D001706:Biopsy; D005750:Gastric Juice / Q000378:metabolism; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D007437:Intrinsic Factor / Q000378:metabolism; D008297:Male; D014812:Vitamin K / Q000627:therapeutic use
D000906:Antibodies; D014812:Vitamin K; D007437:Intrinsic Factor