Perinatal outcomes in children born after fresh or frozen embryo transfer: a Catalan cohort study based on 14,262 newborns
Perinatal outcomes are not negatively affected by vitrification, and differences between fresh and frozen embryos are only observed after controlled ovarian hyperstimulation.
Volume 107, Issue 4, Pages 940–947
Mar Vidal, M.D., Kilian Vellvé, M.D., Mireia González-Comadran, M.D., Ana Robles, Ph.D., Maria Prat, Ph.D., Mar Torné, M.D., Ramón Carreras, Ph.D., Miguel A. Checa, Ph.D.
Perinatal outcomes are negatively affected by COH and not affected by the vitrification process.