PT - JOURNAL ARTICLE AU - Anne Cockcroft TI - Occupational and Environmental Medicine and the London Faculty of Occupational Medicine AID - 10.1136/oem.51.7.433 DP - 1994 Jul 01 TA - Occupational and Environmental Medicine PG - 433--434 VI - 51 IP - 7 4099 - http://oem.bmj.com/content/51/7/433.short 4100 - http://oem.bmj.com/content/51/7/433.full SO - Occup Environ Med1994 Jul 01; 51