RT Journal Article SR Electronic T1 Commentary JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 83 OP 84 DO 10.1136/jme.3.2.83 VO 3 IS 2 A1 Peter Zacharias YR 1977 UL http://jme.bmj.com/content/3/2/83.abstract AB