RT Journal Article SR Electronic T1 Food safety in China JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 478 OP 479 DO 10.1136/jech-2012-201767 VO 67 IS 6 A1 Wu, Yongning A1 Chen, Yan YR 2013 UL http://jech.bmj.com/content/67/6/478.abstract AB