ESHRE Central Office, Comparative Analysis of Medically Assisted Reproduction in the EU: Regulation and Technologies, 2008, p. 9 ([Internet, 2021-01-12](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjfsbrx0pbuAhVK6qQKHSRUDyYQFjABegQIAhAC&url=https%3A%2F%2Fec.europa.eu%2Fhealth%2Fblood_tissues_organs%2Fdocs%2Fstudy_eshre_en.pdf&usg=AOvVaw3HiNSM6pXt37wezB6KNMR1))