Singhala, K., O-Prasertsawat, P., Saropala, N., & Sujirarat, D. (1998). Factors Associated with Preeclampsia in Pregnant Women Admitted at Ramathibodi Hospital, 1994-1995. Thai Journal of Obstetrics and Gynaecology, 10(1), 21–26. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/257112