PT  - JOURNAL ARTICLE
ED - BMJ Publishing Group Ltd
TI  - CORRECTION
AID  - 10.1136/oem.30.3.303
DP  - 1973 Jul 01
TA  - British Journal of Industrial Medicine
PG  - 303--303
VI  - 30
IP  - 3
4099  - http://oem.bmj.com/content/30/3/303.short
4100  - http://oem.bmj.com/content/30/3/303.full
SO  - Br J Ind Med1973 Jul 01; 30