Boonchuan, K., Wattananirun, K., & Boriboonhirunsarn, D. (2018). Incidence of Intrapartum Abnormal Fetal Heart Rate Pattern in Siriraj Hospital. Thai Journal of Obstetrics and Gynaecology, 26(1), 18–26. https://doi.org/10.14456/tjog.2018.5