Rugpao, S., Tongsong, T., Lao-kul-dilok, T., Lao-kul-dilok, J. and Sekhornrit, R. (1990) “Interrelationship Between Serum Iron Concentra tion and Pregnancy-induced Hypertension and Chronic Hypertension in Pregnancy”, Thai Journal of Obstetrics and Gynaecology. Bangkok, Thailand, 2(2), pp. 59–65. available at: https://he02.tci-thaijo.org/index.php/tjog/article/view/257883 (accessed: 29 September 2026).