RT Journal Article SR Electronic T1 Informed dissent: a further response JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 53 OP 54 DO 10.1136/jme.13.1.53-a VO 13 IS 1 A1 Simon J Neale YR 1987 UL http://jme.bmj.com/content/13/1/53.2.abstract AB