1. WHO statement on caesarean section rates;AP Betran;BJOG,2016
2. Saving mothers lives: reviewing maternal deaths to make motherhood safer: 2006–2008;BJOG,2011
3. Factors associated with peripartum hysterectomy;C Bodelon;Obstet Gynecol,2009
4. Female admissions (aged 16–50 years) to adult, general critical care units in England, Wales and Northern Ireland reported as ‘currently pregnant’ or ‘recently pregnant’,2013
5. The epidemiology of postpartum hemorrhage in a large, nationwide sample of deliveries;BT Bateman;Anesth Analg,2010