1. Programming the endometrium for deferred transfer of cryopreserved embryos: hormone replacement versus modified natural cycles 
Eva R. Groenewoud, M.D., Ph.D., Bernard J. Cohlen, M.D., Ph.D., Nicholas S. Macklon, M.D., Ph.D. 
Fertility and Sterility 
Volume 109, Issue 5, Pages (May 2018)
DOI: /j.fertnstert
Copyright © 2018 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Rising proportion in ETs in frozen–thawed embryo transfer (FET) cycles compared with fresh IVF and intracytoplasmic sperm injection (ICSI) cycles in the United States between 2005 and 2014 (data from the US Centers for Disease Control and Prevention).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2018 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2 Updated meta-analyses comparing live birth NC-FET vs. AC-FET.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2018 American Society for Reproductive Medicine Terms and Conditions

4. Figure 3 Summary, NC-FET vs. AC-FET.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2018 American Society for Reproductive Medicine Terms and Conditions