PT - JOURNAL ARTICLE AU - Keith Palmer TI - Work in brief DP - 2006 Mar 01 TA - Occupational and Environmental Medicine PG - 157--157 VI - 63 IP - 3 4099 - http://oem.bmj.com/content/63/3/157.2.short 4100 - http://oem.bmj.com/content/63/3/157.2.full SO - Occup Environ Med2006 Mar 01; 63