1. Current status of pregnancy-related maternal mortality in Japan: a report from the maternal death exploratory committee in Japan;Hasegawa;BMJ Open,2016
2. Reducing the risk of venous thromboembolism during pregnancy and the puerperium;R.C.o.O.a. Gynaecologists;Green-top Guideline,2015
3. Peripartum pulmonary embolism;Miller;Clin. Chest Med.,2011
4. Epidemiology of venous thromboembolism (VTE) associated with pregnancy;Parunov;Birth defects Res. C. Embryo Today,2015
5. Thrombosis during pregnancy and the postpartum period;James;Am. J. Obstet. Gynecol.,2005