1. Early loss rates of entire pregnancies after assisted reproduction are lower in twin than in singleton pregnancies 
Alexandra Matias, M.D., Giovanni B. La Sala, M.D., Isaac Blickstein, M.D. 
Fertility and Sterility 
Volume 88, Issue 5, Pages (November 2007)
DOI: /j.fertnstert
Copyright © 2007 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Spontaneous loss rates (%) in singleton and twin gestations after assisted reproduction.
Matias. Early embryonic loss following ART. Fertil Steril 2007.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2007 American Society for Reproductive Medicine Terms and Conditions