References
- Kramer MS, Dahhou M, Vallerand D, et al. Risk factors for postpartum hemorrhage: can we explain the recent temporal increase? J Obstet Gynaecol Can. 2011;33:810–819.
- Ministry of Health, Labour and Welfare. Summary of static/dynamic survey of medical institutions and hospital report. Tokyo, Japan: Ministry of Health, Labour and Welfare; 2014. p. 2014.
- Hasegawa J, Sekizawa A, Tanaka H, et al. Current status of pregnancy-related maternal mortality in Japan: a report from the Maternal Death Exploratory Committee in Japan. BMJ Open. 2016;6:e010304.
- Irita K, Inada E. Guidelines for management of critical bleeding in obstetrics. Masui. 2011;60:14–22.
- Healy DL, Breheny S, Halliday J, et al. Prevalence and risk factors for obstetric haemorrhage in 6730 singleton births after assisted reproductive technology in Victoria Australia. Hum Reprod. 2010;25:265–274.
- Kramer MS, Berg C, Abenhaim H, et al. Incidence, risk factors, and temporal trends in severe postpartum hemorrhage. Am J Obstet Gynecol. 2013;209:449.e1–449.e7.
- Mhyre JM, Shilkrut A, Kuklina EV, et al. Massive blood transfusion during hospitalization for delivery in New York State, 1998–2007. Obstet Gynecol. 2013;122:1288–1294.
- Nakamura Y, Yaguchi C, Itoh H, et al. Morphologic characteristics of the placental basal plate in in vitro fertilization pregnancies: a possible association with the amount of bleeding in delivery. Hum Pathol. 2015;46:1171–1179.
- Qin J, Liu X, Sheng X, et al. Assisted reproductive technology and the risk of pregnancy-related complications and adverse pregnancy outcomes in singleton pregnancies: a meta-analysis of cohort studies. Fertil Steril. 2016;105:73–85.e1.