RT Journal Article
SR Electronic
T1 Respiratory protective equipment
JF Occupational and Environmental Medicine
JO Occup Environ Med
FD BMJ Publishing Group Ltd
SP 423
OP 428
DO 10.1136/oem.2002.004424
VO 62
IS 6
A1 R M Howie
YR 2005
UL http://oem.bmj.com/content/62/6/423.abstract
AB