Comparison of pregnancy rate between fresh embryo transfers and frozen-thawed embryo transfers following ICSI treatment

ABSTRACT

Background: The use of assisted reproductive technology [ART] is increasing in the world. The rate, efficacy and safety of ART are very different among countries. There is an increase in the use of intra cytoplasmic sperm injection [ICSI], single fresh embryo transfer [ET] and frozen-thawed embryo transfer [FET]