1. AIHW media release - Maternal death low in Australia http://www.aihw.gov.au/mediacentre/2008/mr20080502.cfm
2. Maternal near-miss - towards a standard tool for monitoring quality of maternal health care;Say;Best Pract Res Clin Obstet Gynaecol,2009
3. Australian Maternity Outcomes Surveillance System Australasian maternity outcomes surveillance system annual report 2009 http://www.amoss.com.au
4. United Kingdom Obstetric Surveillance System (UKOSS) A new national system to study rare disorders of pregnancy http://www.npeu.ox.ac.uk/uknes
5. Can enquiries into severe maternal morbidity act as a surrogate for maternal death enquiries?;Pattinson;BJOG,2003