# Using a Surrogate Marker for Early Testing of a Treatment Effect

> Research article (Biometrics, 2019) · cited 14× · AI/ML

**Wikidata**: [openalex:W2942365264](https://www.wikidata.org/wiki/openalex:W2942365264)  
**Source**: https://4ort.xyz/entity/using-a-surrogate-marker-for-early-testing-of-a-treatment-effect