title: Carotenoid and retinol levels in the blood of ulcerative colitis patients and controls.
mesh_terms: D002338:Carotenoids / Q000097:blood*; D003093:Colitis, Ulcerative / Q000097:blood*; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D014801:Vitamin A / Q000097:blood*
chemical_list: D014801:Vitamin A; D002338:Carotenoids