Outcomes of prophylactic and emergency cerclage versus expectant management for cervical insufficiency: a single-center retrospective, comparative study
E. J. Shim, H. J. Kim, I. Y. Kim, K. Y. Oh, Y. S. Yang, C. H. Jin
Clinical and Experimental Obstetrics & Gynecology . 2020, (2): 262 -267 .  DOI: 10.31083/j.ceog.2020.02.5200