S. Mamun, M. S. Alam, J. Abedin, P. Karmakar, S. M. Khaled, and N. S. Anny, “Serum Iron Level in the First Trimester of Pregnancy Among Women Visiting a Tertiary Care Hospital in Bangladesh”, J Chittagong Med Coll Teachers Ass, vol. 34, no. 2, pp. 95–100, Aug. 2025.