PT - JOURNAL ARTICLE ED - Palmer, Keith TI - Work in Brief DP - 2008 Nov 01 TA - Occupational and Environmental Medicine PG - i--i VI - 65 IP - 11 4099 - http://oem.bmj.com/content/65/11/i.short 4100 - http://oem.bmj.com/content/65/11/i.full SO - Occup Environ Med2008 Nov 01; 65