PT - JOURNAL ARTICLE AU - D.S. TI - N. HOWARD MUMMERY AID - 10.1136/oem.4.4.259 DP - 1947 Oct 01 TA - British Journal of Industrial Medicine PG - 259--259 VI - 4 IP - 4 4099 - http://oem.bmj.com/content/4/4/259.short 4100 - http://oem.bmj.com/content/4/4/259.full SO - Br J Ind Med1947 Oct 01; 4