Subakir, Sri B., Tri Jauhari, Pramita Iriana, Minarma Siagian, and Sutarmo Setiadji. 2005. “The Impact of β-HCG on Placental Angiogenesis in Pre-Eclampsia”. Medical Journal of Indonesia 14 (2):67-70. https://doi.org/10.13181/mji.v14i2.175.