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 252
OP 252
DO 10.1136/jech.47.3.252-b
VO 47
IS 3
YR 1993
UL http://jech.bmj.com/content/47/3/252.3.abstract
AB