RT Journal Article
SR Electronic
T1 Authors reply
JF Occupational and Environmental Medicine
JO Occup Environ Med
FD BMJ Publishing Group Ltd
SP 785
OP 786
VO 64
IS 11
A1 McDonald, J C
A1 Harris, J M
A1 Berry, G
YR 2007
UL http://oem.bmj.com/content/64/11/785.2.abstract
AB