RT Journal Article
SR Electronic
T1 Abstracts
JF British Journal of Industrial Medicine
JO Br J Ind Med
FD BMJ Publishing Group Ltd
SP 67
OP 75
DO 10.1136/oem.4.1.67
VO 4
IS 1
YR 1947
UL http://oem.bmj.com/content/4/1/67.abstract
AB