Cao, Qiaohong, Cong Ma, and Junbiao Zhu. 2021. “Ultrasound Doppler Fetal Heart Rate Detection Algorithm Analyzesthe Correlation Between Twin Selective Fetal growth restriction and Cord Blood SFass FasL Level”. Pakistan Journal of Medical Sciences 37 (6-WIT). https://doi.org/10.12669/pjms.37.6-WIT.4881.