RT Journal Article SR Electronic T1 Phase IV research: innovation in need of ethics JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 415 OP 416 DO 10.1136/jme.2007.023911 VO 34 IS 6 A1 Ghislaine J M W van Thiel A1 Johannes J M van Delden YR 2008 UL http://jme.bmj.com/content/34/6/415.abstract AB