Song, B., Wei, Z., Xu, X., Wang, X., He, X., Wu, H., . . . Cao, Y. (2017). Prevalence and risk factors of monochorionic diamniotic twinning after assisted reproduction: A six-year experience base on a large cohort of pregnancies. PLoS One.

Song, Bing, Zhao-Lian Wei, Xiao-Feng Xu, Xue Wang, Xiao-Jin He, Huan Wu, Ping Zhou, i Yun-Xia Cao. "Prevalence and Risk Factors of Monochorionic Diamniotic Twinning After Assisted Reproduction: A Six-year Experience Base On a Large Cohort of Pregnancies." PLoS One 2017.

Song, Bing, et al. "Prevalence and Risk Factors of Monochorionic Diamniotic Twinning After Assisted Reproduction: A Six-year Experience Base On a Large Cohort of Pregnancies." PLoS One 2017.