Siregar, D. I. S., Siregar, M. F. G., Siregar, G. A., & Warli, S. M. (2021). von Willebrand Factor Gene Polymorphism in Preeclampsia Pregnant at Medan, Indonesia. Open Access Macedonian Journal of Medical Sciences, 9(A), 1047–1051. https://doi.org/10.3889/oamjms.2021.7732