RT Journal Article SR Electronic T1 Chaperone JF Medical Humanities JO J Med Humanit FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP e13 OP e13 DO 10.1136/medhum-2012-010237 VO 38 IS 2 A1 Adam Possner YR 2012 UL http://mh.bmj.com/content/38/2/e13.abstract AB