Antes de iniciar un ciclo de fertilización in vitro, piensa en algunas preguntas clave, como las siguientes: The zona pellucida initially allows to guard the egg and ensuing embryo. However it is vital the embryo hatch within the zona pellucida for it to implant while in the uterine wall and https://bizdirectoryinfo.com/listings12935047/the-greatest-guide-to-egg-freezing