Dadaei, T.; Safapoor, M. H.; Asadzadeh Aghdaei, H.; Balaii, H.; Pourhoseingholi, M. A.; Naderi, N.; Zojaji, H.; Azimzadeh, P.; Mohammadi, P.; Zali, M. R. Effect of Vitamin D3 Supplementation on TNF-? Serum Level and Disease Activity Index in Iranian IBD Patients. Gastroenterol Hepatol Bed Bench 2014, 8, 33-41.