# The impact of selection bias on vaccine effectiveness estimates from test-negative studies

> Research article (Vaccine, 2017) · cited 43× · AI/ML

**Wikidata**: [openalex:W2773540893](https://www.wikidata.org/wiki/openalex:W2773540893)  
**Source**: https://4ort.xyz/entity/the-impact-of-selection-bias-on-vaccine-effectiveness-estimates-from-test-negative-studies