RT Journal Article SR Electronic T1 CORRECTION JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 251 OP 251 DO 10.1136/jech.2003.014613corr1 VO 59 IS 3 YR 2005 UL http://jech.bmj.com/content/59/3/251.3.abstract AB