embryo morphorlogy, including perivitelline space, polar body, granular cy- toplasm, smooth endoplasmic reticulum incidence, vacuolization and abnor-.
subsequent transfer in a frozen embryo transfer (FET) cycle (Group A) were matched to their controls with respect to age, peak estradiol, FSH and number of oocytes retrieved (Group B). Pregnancy and implantation rates per transfer were compared. Data were analyzed using the independent t-test and chisquared test. Significance was considered at P
