RT Journal Article SR Electronic T1 Evidence-based patient empowerment JF Quality in Health Care JO Qual Health Care FD BMJ Publishing Group Ltd SP 200 OP 201 DO 10.1136/qhc.9.4.200 VO 9 IS 4 A1 M Wensing YR 2000 UL http://qualitysafety.bmj.com/content/9/4/200.abstract AB