# Efficient Sampling in Unmatched Case–Control Studies When the Total Number of Cases and Controls Is Fixed

> Research article (Epidemiology, 2017) · cited 11× · AI/ML

**Wikidata**: [openalex:W2734246562](https://www.wikidata.org/wiki/openalex:W2734246562)  
**Source**: https://4ort.xyz/entity/efficient-sampling-in-unmatched-casecontrol-studies-when-the-total-number-of-cases-and-controls-is-fixed