21.   While German law forbids artificial procreation for research, and the use of surplus embryos originally fertilised in vitro for implantation, it is silent on imported embryonic tissue.

22.   Its laws forbid artificial procreation for research as well as the use of surplus embryos originally created for in-vitro fertility treatment.

23.   The Canadian government introduced legislation Thursday to ban embryonic cloning and severely restrict the use of so-called surplus embryos for stem cell research.