Phupong, Vorapong, Patau Tanbirojn, and Ruangsak Lertkhachonsuk. 2022. “Serum Angiopoietin-1/Angiopoietin-2 at 16-18 Weeks of Gestation to Predict Preeclampsia”. Journal of Health Science and Medical Research 39 (5):373-79. https://doi.org/10.31584/jhsmr.2021793.