RT Journal Article
SR Electronic
T1 Bias in case-control studies. A review.
JF Journal of Epidemiology and Community Health
JO J Epidemiol Community Health
FD BMJ Publishing Group Ltd
SP 179
OP 186
DO 10.1136/jech.44.3.179
VO 44
IS 3
A1 J A Kopec
A1 J M Esdaile
YR 1990
UL http://jech.bmj.com/content/44/3/179.abstract
AB