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 292 OP 292 DO 10.1136/jech-2014-204380corr1 VO 69 IS 3 YR 2015 UL http://jech.bmj.com/content/69/3/292.2.abstract AB