Gerardo Vela, M. D. , Martha Luna, M. D. , Jason Barritt, Ph. D

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Monozygotic pregnancies conceived by in vitro fertilization: understanding their prognosis Gerardo Vela, M.D., Martha Luna, M.D., Jason Barritt, Ph.D., Benjamin Sandler, M.D., Alan B. Copperman, M.D. Fertility and Sterility Volume 95, Issue 2, Pages 606-610 (February 2011) DOI: 10.1016/j.fertnstert.2010.04.001 Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

Figure 1 Pregnancy outcomes by fetal number and reduction status of MZ pregnancies conceived by in vitro fertilization. ˜One patient had both a PSR and a MPR and was included in both groups. ∗Seven MZ and three singletons were reduced. ∗∗All reduced the MZ twins. ^Six neonatal deaths occurred for extreme prematurity. ^^One stillbirth occurred at term and two neonatal deaths for extreme prematurity. BW = birth weight (grams); CSR = complete spontaneous reduction; GAD = gestational age at delivery (weeks); HOMP = high-order multiple pregnancy; MPR = multifetal pregnancy reduction; Mort = mortality; MZ = monozygotic; NB/D = newborns per delivery; PSR = partial spontaneous reduction. Fertility and Sterility 2011 95, 606-610DOI: (10.1016/j.fertnstert.2010.04.001) Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions