The absorption of vitamins in disorders of the alimentary tract.
D001361:Avitaminosis / Q000209:etiology*; D005767:Gastrointestinal Diseases / Q000502:physiology*; D014801:Vitamin A; D014815:Vitamins
D014815:Vitamins; D014801:Vitamin A
GASTROINTESTINAL DISEASES/physiology; VITAMIN DEFICIENCIES/etiology and pathogenesis