41.   But the research is detecting measures of athletic fitness and, as a consequence, the studies raise ethical questions.

42.   But using the tests to select an embryo as a tissue donor raises a host of new ethical questions.

43.   Clinton appointed a bioethics advisory commission last week to look into the ethical questions and the possible abuses of cloning.

44.   Clinton, of course, still faces difficult ethical questions.

45.   Coelho, who has been dogged by ethical questions, stepped down for health reasons.

46.   Considering the known benefits of estrogen, he said, giving women placebos instead of the hormone raises ethical questions.

47.   Critics also predict that government support could legitimize experimentation with embryos and give rise to a host of new ethical questions.

48.   Despite the medical promise, the use of fetal tissue poses grave ethical questions.

49.   Does such exposure raise ethical questions about news shows being used by networks or news anchors to promote their own books?

50.   Do you have ethical questions that you need answered?