RT Journal Article SR Electronic T1 Drug trial ethics. JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 270 OP 270 DO 10.1136/jme.20.4.270 VO 20 IS 4 A1 J M Kellett YR 1994 UL http://jme.bmj.com/content/20/4/270.1.abstract AB