# A General Framework for Considering Selection Bias in EHR-Based Studies: What Data are Observed and Why?

> Research article (eGEMs (Generating Evidence & Methods to improve patient outcomes), 2016) · cited 118× · AI/ML

**Wikidata**: [openalex:W2512716582](https://www.wikidata.org/wiki/openalex:W2512716582)  
**Source**: https://4ort.xyz/entity/a-general-framework-for-considering-selection-bias-in-ehr-based-studies-what-data-are-observed-and-why