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://www.tci-thaijo.org/index.php/bulletinAMS/article/view/111918