RT Journal Article SR Electronic T1 Not empirical, but observational or experimental JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 549 OP 549 DO 10.1136/jme.25.6.549 VO 25 IS 6 A1 Neville Goodman YR 1999 UL http://jme.bmj.com/content/25/6/549.1.abstract AB