Chetcuti Zammit, Stefania Vitamin D and Ulcerative Colitis: Is There a Relationship with Disease Extent? [electronic resource] - Digestive diseases (Basel, Switzerland) 2019 - 208-213 p. digital Publication Type: Journal Article ISSN: 1421-9875 Standard No.: 10.1159/000494439 doi Subjects--Topical Terms: AdultBiomarkers--bloodCase-Control StudiesColitis, Ulcerative--bloodFemaleHumansMaleMiddle AgedVitamin D--blood