background: we aimed to explore whether maternal asymptomatic hepatitis b (hb) infection effects on pre-term rupture of membranous (prom), stillbirth, preeclampsia, eclampsia, gestational hypertension, or antepartum hemorrhage. methods: we searched the pubmed, scopus, and isi web of science from 1990 to feb 2015. in addition, electronic literature searches supplemented by searching the gray lit...