Efficacy of cervical
pessary versus cervical cerclage in preventing spontaneous preterm
birth: a meta-analysis
Ya-na
Liu a,b*, Zhi-wei Xue a,b*, Shu Zhoua,b
a Department of Obstetrics and Gynecology, West China Second University
Hospital, Sichuan University, 610041 Chengdu, Sichuan, China
b Key Laboratory of Birth Defects and Related Diseases of Women and
Children (Sichuan University), Ministry of Education, 610041 Chengdu,
Sichuan, China
*Authors contributed equally to this work.
Correspondence to: Shu Zhou,E-mail:
zhoushu_1109@163.com
Funding: This study was supported by the National Key Research and
Development Program of China (Grant NO: 2018YFC1004603),