# Index or illusion: The case of frailty indices in the Health and Retirement Study

> Research article (PLoS ONE, 2018) · cited 28× · AI/ML

**Wikidata**: [openalex:W2883622310](https://www.wikidata.org/wiki/openalex:W2883622310)  
**Source**: https://4ort.xyz/entity/index-or-illusion-the-case-of-frailty-indices-in-the-health-and-retirement-study