LUBIS, M. P. “THE ROLE OF PREDICTOR PLACENTAL GROWTH FACTOR, SOLUBLE ENDOGLIN, SOLUBLE-FMS-LIKE-TYROSINE KINASE-1 AND PULSATIL UTERINA ARTERIAL INDEX TO PREDICT THE EARLY ONSET OF PREECLAMPSIA”. International Journal of Current Pharmaceutical Research, vol. 12, no. 3, May 2020, pp. 45-57, doi:10.22159/ijcpr.2020v12i3.38305.