RT Journal Article SR Electronic T1 Health inequality: an introduction to concepts, theories and methods JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 711 OP 711 VO 59 IS 8 A1 Lester, Carolyn YR 2005 UL http://jech.bmj.com/content/59/8/711.2.abstract AB