The EPIC-Norfolk Study

 

Prediagnostic Serum Vitamin D Levels and the Risk of Crohn's Disease and Ulcerative Colitis in European Populations: A Nested Case-Control Study.

Opstelten JL, Chan SSM, Hart AR, van Schaik FDM, Siersema PD, Lentjes EGWM, Khaw KT, Luben R, Key TJ, Boeing H, Bergmann MM, Overvad K, Palli D, Masala G, Racine A, Carbonnel F, Boutron-Ruault MC, Tjønneland A, Olsen A, Andersen V, Kaaks R, Kühn T, Tumino R, Trichopoulou A, Peeters PHM, Verschuren WMM, Witteman BJM, and Oldenburg B

Inflammatory bowel diseases. Jun 2017

(DOI : 10.1093/ibd/izx050)

---