1. World Health Organization. The WHO application of ICD-10 to deaths during pregnancy, childbirth and puerperium: ICD MM. Publication date: 2012. ISBN: 978 92 4 154845 8. Accessible on: https://apps.who.int/iris/bitstream/handle/10665/70929/9789241548458_eng.pdf;jsessionid=A660C360F3FD05CF80085A0EA22059B1?sequence=1
2. Say L, Souza JP, Pattinson RC, WHO working group on Maternal Mortality and Morbidity classifications. Maternal near miss–towards a standard tool for monitoring quality of maternal health care. Best Pract Res Clin Obstet Gynaecol. 2009;23(3):287–96.
3. Brown MA, Magee LA, Kenny LC, et al. Hypertensive disorders of pregnancy: ISSHP classification, diagnosis, and management recommendations for international practice. Hypertension. 2018;72(1):24–43.
4. World Health Organization. WHO recommendations for the prevention and treatment of postpartum haemorrhage. Publication date: 2012. ISBN: 978 92 4 154850 2. Accesible on: https://apps.who.int/iris/bitstream/handle/10665/75411/9789241548502_eng.pdf?sequence=1
5. Nederlandse Vereniging voor Obstetrie en Gynaecologie. NVOG-richtlijn Hemorrhagia Postpartum (HPP). Arnhem: NVOG; 2013. Accessible on: https://www.nvog.nl/wp-content/uploads/2018/02/Hemorrhagia-postpartum-HPP-3.0-14-11-2013.pdf