RT Journal Article SR Electronic T1 Stem cell-derived gametes, iterated in vitro reproduction, and genetic parenthood JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 723 OP 724 DO 10.1136/medethics-2014-102521 VO 40 IS 11 A1 Thomas Douglas YR 2014 UL http://jme.bmj.com/content/40/11/723.abstract AB