Yoshioka-Maeda, K., Ota, E., Ganchimeg, T., Kuroda, M., & Mori, R. (2016). Caesarean section by maternal age group among singleton deliveries and primiparous Japanese women: A secondary analysis of the WHO Global Survey on Maternal and Perinatal Health. BMC Pregnancy Childbirth.

Yoshioka-Maeda, Kyoko, Erika Ota, Togoobaatar Ganchimeg, Mariko Kuroda, and Rintaro Mori. "Caesarean Section By Maternal Age Group Among Singleton Deliveries and Primiparous Japanese Women: A Secondary Analysis of the WHO Global Survey On Maternal and Perinatal Health." BMC Pregnancy Childbirth 2016.

Yoshioka-Maeda, Kyoko, et al. "Caesarean Section By Maternal Age Group Among Singleton Deliveries and Primiparous Japanese Women: A Secondary Analysis of the WHO Global Survey On Maternal and Perinatal Health." BMC Pregnancy Childbirth 2016.