1. Mistry K Fingar KR Elixhauser A Variation in the Rate of Cesarean Section Across U.S. Hospitals, 2013: Statistical Brief #211. Healthcare Cost and Utilization Project (HCUP) Statistical Briefs Rockville, MD Agency for Healthcare Research and Quality (US) 2006
2. Birth After Previous Caesarean Birth https://www.rcog.org.uk/globalassets/documents/guidelines/gtg_45.pdf
3. The Swedish Pregnancy Register, annual report 2016 https://www.medscinet.com/GR/uploads/hemsida/dokumentarkiv/GR_Arsrrapport_2016_2.1.pdf
4. ACOG practice bulletin no. 115: vaginal birth after previous cesarean delivery;Obstet Gynecol,2010
5. NIH consensus development conference draft statement on vaginal birth after cesarean: new insights;Cunningham;NIH Consens State Sci Statements,2010