1. Spontaneous ovulation versus HCG triggering for timing natural-cycle frozen–thawed embryo transfer: a randomized study 
Ariel Weissman, Eran Horowitz, Amir Ravhon, Zohar Steinfeld, Ravit Mutzafi, Avraham Golan, David Levran 
Reproductive BioMedicine Online 
Volume 23, Issue 4, Pages (October 2011)
DOI: /j.rbmo
Copyright © 2011 Reproductive Healthcare Ltd. Terms and Conditions

2. Figure 1
Number of women included in and excluded from the study and clinical pregnancy data and outcomes. FET=frozen–thawed embryo transfer; HCG=human chorionic gonadotrophin.
Reproductive BioMedicine Online  , DOI: ( /j.rbmo )
Copyright © 2011 Reproductive Healthcare Ltd. Terms and Conditions