“The Endothelin-1, Nitric Oxide Levels And Roll Over Test in Preeclampsia and Normotensive Pregnancy”, HC, vol. 12, no. 2, pp. 241–247, Dec. 2023, Accessed: Jan. 13, 2026. [Online]. Available: https://jurnal.payungnegeri.ac.id/index.php/healthcare/article/view/368