In vitro Human Embryo Morphology - An Odissey Outside the Oviduct

The authors describe the human embryo development in vitro, during the preimplantation stages, i.e., from the zygote until the blastocyst stage. They also describe the methods to select the most suitable embryo for transfer in cycles of In vitro fertilization treatment, performed by infertile patients, in order to increase implantation and pregnancy rates.