Potential updates to Cornfield's 1959 ‘Principles of Research’
Crossref DOI link: https://doi.org/10.1002/sim.5431
Published Online: 2012-10-05
Published Print: 2012-10-30
Update policy: https://doi.org/10.1002/crossmark_policy
Rubin, Donald B.
Version of Record valid from 2012-10-05
Text and Data Mining valid from 2012-10-05