Effect of cervical pessary on pregnancy outcome in patients with twin pregnancies: a systematic review and meta-analysis
Wang yue1,Wu jiaxing2, Ma di3 Huang mingli*,1Department of Obstetrics and Gynecology, First Affiliated Hospital of Harbin Medical University Harbin, Heilongjiang, CN2Department of Obstetrics and Gynecology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai,3Department of Obstetrics and Gynecology, First Affiliated Hospital of Harbin Medical University Harbin, Heilongjiang, CN,China.Medical University,Harbin China.
Effect of cervical pessary on pregnancy outcome in patients with twin pregnancies: a systematic review and meta-analysis