1. Venous thromboembolism during pregnancy and the postpartum period: incidence, risk factors, and mortality;James;Am J Obstet Gynecol,2006
2. Pregnancy-related mortality in the United States, 1998 to 2005;Berg;Obstet Gynecol,2010
3. Saving mothers' lives: reviewing maternal deaths to make motherhood safer: 2006–2008. The eighth report of the confidential enquiries into maternal deaths in the United Kingdom;Cantwell;BJOG,2011
4. Recommendations for the diagnosis and treatment of deep venous thrombosis and pulmonary embolism in pregnancy and the postpartum period;McLintock;Aust N Z J Obstet Gynaecol,2011
5. Recommendations for the prevention of pregnancy-associated venous thromboembolism;McLintock;Aust N Z J Obstet Gynaecol,2011