RT Journal Article SR Electronic T1 Protecting the vulnerable: autonomy and consent in health care JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 59 OP 59 DO 10.1136/jme.19.1.59 VO 19 IS 1 A1 Eric Matthews YR 1993 UL http://jme.bmj.com/content/19/1/59.1.abstract AB