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Validity of a study: Internal and external validity

Crossref DOI link: https://doi.org/10.1016/j.cireng.2021.12.007

Published Print: 2022-10

Update policy: https://doi.org/10.1016/elsevier_cm_policy

Authors

Sala Serra, Maria

Domingo Torrell, Laia
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This article is maintained by: Elsevier

Article Title: Validity of a study: Internal and external validity

Journal Title: Cirugía Española (English Edition)

CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.cireng.2021.12.007

CrossRef DOI link to the associated document: https://doi.org/10.1016/j.ciresp.2021.12.008

Content Type: article

Copyright: © 2022 Published by Elsevier España, S.L.U. on behalf of AEC.