RT Journal Article SR Electronic T1 Ethics briefings JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 517 OP 518 VO 30 IS 5 A1 Veronica English A1 Rebecca Mussell A1 Julian Sheather A1 Ann Sommerville YR 2004 UL http://jme.bmj.com/content/30/5/517.abstract AB