PT - JOURNAL ARTICLE ED - , TI - CORRECTIONS AID - 10.1136/jech.2003.019547corr1 DP - 2005 Jun 01 TA - Journal of Epidemiology and Community Health PG - 531--531 VI - 59 IP - 6 4099 - http://jech.bmj.com/content/59/6/531.4.short 4100 - http://jech.bmj.com/content/59/6/531.4.full SO - J Epidemiol Community Health2005 Jun 01; 59