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CohortConstructor
requireIsFirstEntry
requireIsFirstEntry function
Restrict cohort to first entry
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CohortConstructor package
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Maintainer: Edward Burn
License: Apache License (>= 2)
Last published: 2025-12-23
Useful links
https://ohdsi.github.io/CohortConstructor/
https://github.com/OHDSI/CohortConstructor