Monozygotic twins in infertile patients with advanced maternal age: case reports and review of the literature Navid Esfandiari, D.V.M., Ph.D., H.C.L.D., Monica Kapoor, M.D., Hasan Burjaq, B.Sc., M.T., Paul Chang, M.D., Lynda Gotlieb, R.N., Robert F. Casper, M.D. Fertility and Sterility Volume 92, Issue 3, Pages 1168.e9-1168.e12 (September 2009) DOI: 10.1016/j.fertnstert.2009.05.085 Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Ultrasound image of monochorionic, monoamniotic intrauterine twin pregnancy with two fetal heartbeats (case 1). Fertility and Sterility 2009 92, 1168.e9-1168.e12DOI: (10.1016/j.fertnstert.2009.05.085) Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions