1. Society of Family Planning clinical recommendations: cervical preparation for dilation and evacuation at 20-24 weeks’ gestation;Diedrich;Contraception,2020
2. The Safety and Quality of Abortion Care in the United States,2018
3. Cervical preparation for second-trimester surgical abortion prior to 20 weeks’ gestation;Fox;Contraception,2014
4. Comparison of the Foley catheter and dinoprostone pessary for cervical preparation before second trimester abortion;Hackett;Br J Obstet Gynaecol,1989
5. Standardizing the Classification of Abortion Incidents: The Procedural Abortion Incident Reporting and Surveillance (PAIRS) Framework;Taylor;Contraception,2017