Vernia, Piero Inadequate sunlight exposure in patients with inflammatory bowel disease. [electronic resource] - Journal of digestive diseases Jan 2018 - 8-14 p. digital Publication Type: Journal Article ISSN: 1751-2980 Standard No.: 10.1111/1751-2980.12567 doi Subjects--Topical Terms: AdultAgedCase-Control StudiesColitis, Ulcerative--bloodCrohn Disease--bloodFemaleHumansInflammatory Bowel Diseases--bloodMaleMiddle AgedRadiation Exposure--analysisSunlightVitamin D--bloodVitamin D Deficiency--blood