1. The continuum of maternal morbidity and mortality: Factors associated with severity;Geller;Am J Obstet Gynecol,2004
2. Department of Health. Comprehensive Critical Care: a review of adult critical care services. 2000 May. Available at: www.dh.gov.uk. Accessed July 2018.
3. Maternal critical care: what’s in a name?;Wheatly;Int J Obstet Anesth,2010
4. The Maternal Critical Care Working Group. Providing equity of critical and maternity care for the critically-ill pregnant or recently pregnant woman. 2011 July. Available at: https://www.rcog.org.uk/globalassets/documents/guidelines/prov_eq_matandcritcare.pdf. Accessed September 2017.
5. Royal College of Anaesthetists. Available at: www.rcoa.ac.uk. Accessed September 2017.