Thongperm, W., Chaisen, M., Chunchom, Y., Aueduldecha, S., & Sarakul, O. (2018). Preliminary study for the prevalence and causes of anemia in pregnant women attending an Antenatal Care Unit in different periods of gestation. Journal of Associated Medical Sciences, 51(3), 122–127. Retrieved from https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/111918