Oktavia E, Lestari VD, Sirait LI, Arlym LT, Silawati V. Risk Factors And Complications Of Perinatal Mortality In High-Risk Pregnancies: A Systematic Literature Review . borneo nurs. j. [Internet]. 2026 Jul. 21 [cited 2026 Jul. 25];8(2):559-78. Available from: https://bnj.akys.ac.id/BNJ/article/view/755