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