"I think the primary message should be that cryopreservation is safe for most infants," lead researcher Ulla-Britt Wennerholm, MD, from Sahlgrenska University in Göteborg, Sweden, told Medscape Medical News.
In contrast, transferring more than 1 fresh embryo at a time carries a much higher risk for twin pregnancies, which leads to a higher incidence of preterm birth, low birth weight, small size for gestational age, mortality, and risks to the mother, she explained.
subzidizing IVF