doi:10.1136/jme.2007.021709 2008;34;472-477 J. Med. Ethics D Strech, M Synofzik and G Marckmann Systematic reviews of empirical bioethics http://jme.bmj.com/cgi/content/full/34/6/472 Updated information and services can be found at: These include: References http://jme.bmj.com/cgi/content/full/34/6/472#BIBL This article cites 26 articles, 14 of which can be accessed free at: Rapid responses http://jme.bmj.com/cgi/eletter-submit/34/6/472 You can respond to this article at: service Email alerting the top right corner of the article Receive free email alerts when new articles cite this article - sign up in the box at Notes http://journals.bmj.com/cgi/reprintform To order reprints of this article go to: http://journals.bmj.com/subscriptions/ go to: Journal of Medical Ethics To subscribe to on 1 June 2008 jme.bmj.com Downloaded from