Chang, Y., Chao, A., Peng, H., Chang, S., Chen, K., Cheng, P., & Wang, T. (2018). Placental erythropoietin expression is upregulated in growth-restricted fetuses with abnormal umbilical artery Doppler findings: A case–control study of monochorionic twins. BMC Pregnancy Childbirth.

Chang, Yao-Lung, An-Shine Chao, Hsiu-Huei Peng, Shuenn-Dyh Chang, Kuan-Ju Chen, Po-Jen Cheng, and Tzu-Hao Wang. "Placental Erythropoietin Expression Is Upregulated in Growth-restricted Fetuses With Abnormal Umbilical Artery Doppler Findings: A Case–control Study of Monochorionic Twins." BMC Pregnancy Childbirth 2018.

Chang, Yao-Lung, et al. "Placental Erythropoietin Expression Is Upregulated in Growth-restricted Fetuses With Abnormal Umbilical Artery Doppler Findings: A Case–control Study of Monochorionic Twins." BMC Pregnancy Childbirth 2018.