RT Journal Article SR Electronic T1 Rights. JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 150 OP 152 DO 10.1136/jme.7.3.150 VO 7 IS 3 A1 M Lockwood YR 1981 UL http://jme.bmj.com/content/7/3/150.abstract AB