RT Journal Article SR Electronic T1 AUTHOR'S REPLY JF Quality in Health Care JO Qual Health Care FD BMJ Publishing Group Ltd SP 142 OP 142 DO 10.1136/qshc.2.2.142-a VO 2 IS 2 A1 Jewell, David YR 1993 UL http://qualitysafety.bmj.com/content/2/2/142.2.abstract AB