RT Journal Article
SR Electronic
T1 SHORT REVIEWS
JF Journal of Epidemiology and Community Health
JO J Epidemiol Community Health
FD BMJ Publishing Group Ltd
SP 339
OP 339
DO 10.1136/jech.47.4.339-a
VO 47
IS 4
A1 T J David
YR 1993
UL http://jech.bmj.com/content/47/4/339.2.abstract
AB