1. Does storage time influence postthaw survival and pregnancy outcome
Does storage time influence postthaw survival and pregnancy outcome? An analysis of 11,768 cryopreserved human embryos 
Ryan Riggs, M.D., Jacob Mayer, Ph.D., Donna Dowling-Lacey, M.S., Ting-Fing Chi, Ph.D., Estella Jones, M.S., Sergio Oehninger, M.D., Ph.D. 
Fertility and Sterility 
Volume 93, Issue 1, Pages (January 2010)
DOI: /j.fertnstert
Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Scatter plots demonstrating the relationship between thaw survival proportion and cryostorage duration in IVF (upper panel) and oocyte donation (lower panel).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions