Dalal, Komal, Sarita Goyal, and Sandeep Goyal. “The Effect of Vitamin D on Haemoglobin, Patient Assessed Disease Activity and Endoscopic Assessment in Ulcerative Colitis Patients With Anaemia”. International Journal of Basic & Clinical Pharmacology 12, no. 4 (June 27, 2023): 556–562. Accessed October 23, 2025. https://www.ijbcp.com/index.php/ijbcp/article/view/5333.