PT - JOURNAL ARTICLE AU - Di Nucci, Ezio TI - Embryo loss and double effect AID - 10.1136/medethics-2012-101172 DP - 2013 Aug 01 TA - Journal of Medical Ethics PG - 537--540 VI - 39 IP - 8 4099 - http://jme.bmj.com/content/39/8/537.short 4100 - http://jme.bmj.com/content/39/8/537.full SO - J Med Ethics2013 Aug 01; 39 AB - I defend the argument that if embryo loss in stem cell research is morally problematic, then embryo loss in in vivo conception is similarly morally problematic. According to a recent challenge to this argument, we can distinguish between in vivo embryo loss and the in vitro embryo loss of stem cell research by appealing to the doctrine of double effect. I argue that this challenge fails to show that in vivo embryo loss is a mere unintended side effect while in vitro embryo loss is an intended means and that, even if we refine the challenge by appealing to Michael Bratman's three roles of intention, the distinction is still unwarranted.