Dorien Willemen

Learn More
BACKGROUND Freezing/vitrifying and thawing/warming of embryos may impair the successful hatching process of the embryo out of its zona pellucida (ZP) and its following implantation into the uterus.(More)
Since 2004, assisted conception is encompassed by the European Directive on the Quality and Safety of Tissues and Cells (2004/23/EC). The aim of a standard for quality and safety is to minimize risks(More)