1. P-255 Double vitrification and warming does not impact clinical pregnancy rate in single blastocyst transfer cycles. (30th June 2022) Authors: Makieva, S; Sachs, M.K; Xie, M; Velasco, A; El-Hadad, S; Kalaitzopoulos, D.R; Dedes, I; Stiller, R; Leeners, B Journal: Human reproduction Issue: Volume 37(2022)Supplement 1 Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗