The greatest attrition occurs between day 3 and days 5 or 7 (the blastocyst ... the final stage of embryo growth before we ...

After intracytoplasmic sperm injection (ICSI), a 33-year-old woman underwent the transfer of a frozen-thawed blastocyst (Figure ... levels in gestational weeks 5 and 6: 0.11 and 0.22 ng/mL ...

The implantation process occurs within 5–8 days of fertilization by attaching the blastocyst to an optimal ... The formed vacuoles of the embryo become confluent to the uterus with the formation ...