bibliographic resource 1791004 [br/1791004]
https://w3id.org/oc/corpus/br/1791004
is a
document
article
title
Estimating causal effects of treatments in randomized and nonrandomized studies.
publication date
1974-01-01
contributor
https://w3id.org/oc/corpus/ar/6322188
https://w3id.org/oc/corpus/ar/6322189
format
https://w3id.org/oc/corpus/re/904823
identifier
https://w3id.org/oc/corpus/id/3252885
https://w3id.org/oc/corpus/id/3252886
part of
https://w3id.org/oc/corpus/br/1791005