Observational Studies.pdf

Observational Studies PDF

Paul R. Rosenbaum

Date de parution

Observational studies refer to the broad class of epidemiological study designs characterized by the fact that exposure is not assigned by the investigator. Rather  ... 22 Jun 2000 ... Background For many years it has been claimed that observational studies find stronger treatment effects than randomized, controlled trials.

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9780387989679 ISBN
Libre PRIX
Observational Studies.pdf


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