Chronic ulcerative colitis due to pollen allergy with six case reports.
D000485:Allergens; D003093:Colitis, Ulcerative / Q000209:etiology*; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology*; D011058:Pollen; D006255:Rhinitis, Allergic, Seasonal
D000485:Allergens
ALLERGY/etiology and pathogenesis; COLITIS, ULCERATIVE/etiology and pathogenesis; POLLEN