Jon Díez Alcántara, gynaecologist at Fertility Madrid, tells us in this video about the factors involved in the success of IVF with PGD:
When we know that the embryo is euploid, there are other three main factors that will be involved in the probability of the implantation, which are the the endometrium, the inmunological factor and also the hematological factor.
https://youtu.be/HGAoINcGTyM