bibliographic resource 2577135 [br/2577135]
https://w3id.org/oc/corpus/br/2577135
is a
document
article
title
Pragmatic controlled clinical trials in primary care: the struggle between external and internal validity
publication date
2003-01-01
contributor
https://w3id.org/oc/corpus/ar/9434370
https://w3id.org/oc/corpus/ar/9434371
https://w3id.org/oc/corpus/ar/9434372
https://w3id.org/oc/corpus/ar/9434373
https://w3id.org/oc/corpus/ar/9434374
https://w3id.org/oc/corpus/ar/9434375
https://w3id.org/oc/corpus/ar/9434376
https://w3id.org/oc/corpus/ar/9434377
https://w3id.org/oc/corpus/ar/9434378
identifier
https://w3id.org/oc/corpus/id/4895898
https://w3id.org/oc/corpus/id/4895899
https://w3id.org/oc/corpus/id/8349575
https://w3id.org/oc/corpus/id/8349576
part of
https://w3id.org/oc/corpus/br/448918