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Hassan, V. and Hassan, S. and Seyed-Javad, P. and Ahmad, K. and Asieh, H. and Maryam, S. and Farid, F. and Siavash, A. (2013) Association between serum 25 (OH) vitamin D concentrations and inflammatory bowel diseases (IBDS) activity. Medical Journal of Malaysia, 68 (1). pp. 34-38.