# A Five‐Tier System for Improving the Categorization of Transplant Program Performance

> Research article (Health Services Research, 2017) · cited 31× · AI/ML

**Wikidata**: [openalex:W2624837360](https://www.wikidata.org/wiki/openalex:W2624837360)  
**Source**: https://4ort.xyz/entity/a-fivetier-system-for-improving-the-categorization-of-transplant-program-performance