P. Tangtrongpairoj, J. Thinkhamrop, P. Buppasiri, and P. Lumbiganon, “Evaluation Iodine Status and Factors Associated with Low Urinary Iodine Level among Pregnant Women Who Received Iodine Supplementation during Pregnancy”, Thai J Obstet Gynaecol, vol. 25, no. 3, pp. 175–181, Sep. 2017.