PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/jech.2008.079806corr1 DP - 2009 Dec 01 TA - Journal of Epidemiology and Community Health PG - 985--985 VI - 63 IP - 12 4099 - http://jech.bmj.com/content/63/12/985.short 4100 - http://jech.bmj.com/content/63/12/985.full SO - J Epidemiol Community Health2009 Dec 01; 63