Stem cell research: an ethical evaluation of policy options.

In February 2004, South Korean researchers became the first in the world to successfully harvest stem cells and establish a stem cell line from a cloned human embryo. This is just one of eight possible policy options concerning human embryonic stem cell research. In practice, every kind of stem cell research can be done in one country or another. This paper evaluates the eight policy options concerning human embryonic stem cell research in light of the arguments and decisions behind them.