RT Journal Article SR Electronic T1 Moral Philosophy JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 121 OP 122 DO 10.1136/jme.22.2.121 VO 22 IS 2 A1 Cartwright, Will YR 1996 UL http://jme.bmj.com/content/22/2/121.abstract AB