PT - JOURNAL ARTICLE ED - BMJ Publishing Group Ltd TI - Exposure assessment in community-based studies mini-symposium DP - 2007 Dec 01 TA - Occupational and Environmental Medicine PG - e33--e33 VI - 64 IP - 12 4099 - http://oem.bmj.com/content/64/12/e33.short 4100 - http://oem.bmj.com/content/64/12/e33.full SO - Occup Environ Med2007 Dec 01; 64