Multiple gestation associated with infertility therapy: an American Society for Reproductive Medicine Practice Committee opinion Fertility and Sterility Volume 97, Issue 4, Pages 825-834 (April 2012) DOI: 10.1016/j.fertnstert.2011.11.048 Copyright © 2012 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Assisted reproductive technology outcomes in U.S. related to SART/ASRM guidelines for number of embryos to transfer. Data derived from http://www.cdc.gov/ART/ARTReports.htm. Dashed lines indicate years SART/ASRM guidelines were introduced (1998) and subsequently revised (1999, 2004, 2006, and 2008). Multiple births are expressed per delivery; twin and triplet+ pregnancies are expressed per clinical pregnancy. Fertility and Sterility 2012 97, 825-834DOI: (10.1016/j.fertnstert.2011.11.048) Copyright © 2012 American Society for Reproductive Medicine Terms and Conditions