RT Journal Article SR Electronic T1 Equity in health JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 483 OP 484 DO 10.1136/jech.56.7.483 VO 56 IS 7 A1 B Starfield YR 2002 UL http://jech.bmj.com/content/56/7/483.abstract AB