Situmorang, H., Department of Obstetrics and Gynecology Faculty of Medicine Universitas Indonesia ? Dr Cipto Mangunkusumo National Referral Hospital, Jl. Salemba Raya No. 6, Central Jakarta, Jakarta Capital Special Region 10430, Indonesia; Hestiantoro, A., Department of Obstetrics and Gynecology Faculty of Medicine Universitas Indonesia ? Dr Cipto Mangunkusumo National Referral Hospital, Jl. Salemba Raya No. 6, Central Jakarta, Jakarta Capital Special Region 10430, Indonesia; Purbadi, S., Department of Obstetrics and Gynecology Faculty of Medicine Universitas Indonesia ? Dr Cipto Mangunkusumo National Referral Hospital, Jl. Salemba Raya No. 6, Central Jakarta, Jakarta Capital Special Region 10430, Indonesia; Flamandita, D., Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Jl. Fuad Hasan, Pancoran MAS, Kukusan, Beji, Depok City, West Java 16424, Indonesia; Sahlan, M., Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Jl. Fuad Hasan, Pancoran MAS, Kukusan, Beji, Depok City, West Java 16424, Indonesia