During several years of our practice, we have noticed that there is a higher number of twin pregnancies in  double blastocyst transfer. In single blastocyst transfer we have noticed three times higher occurrence of monozygotic twin pregna...

According to Croatian Law on Medically Assisted Reproduction, up to two or three (in specific cases) embryos can be transferred during embryo transfer procedure. Therefore, if we have more than four embryos after 72 hours of culture, we w...