PT - JOURNAL ARTICLE AU - Palmer, Keith TI - Work in brief DP - 2007 Apr 01 TA - Occupational and Environmental Medicine PG - e211--e211 VI - 64 IP - 4 4099 - http://oem.bmj.com/content/64/4/e211.short 4100 - http://oem.bmj.com/content/64/4/e211.full SO - Occup Environ Med2007 Apr 01; 64