# Exploring the impact of selection bias in observational studies of COVID-19: a simulation study

> Research article (International Journal of Epidemiology, 2022) · cited 94× · AI/ML

**Wikidata**: [openalex:W4310956118](https://www.wikidata.org/wiki/openalex:W4310956118)  
**Source**: https://4ort.xyz/entity/exploring-the-impact-of-selection-bias-in-observational-studies-of-covid-19-a-simulation-study