Background: In order to improve ICSI, appropiate sperm selection and oocyte activation is necessary. The objective of the present study was to determine the efficiency of fertilization using ICSI with chemically acti...
This study was conducted to investi- gate the pattern of DNA methylation in pronuclearstage mouse embryos derived from vitrified-warmed oocytes. Mouse oocytes at metaphase II (MII) stage of meiosis were allocated ra...