# Sample size calculation to externally validate scoring systems based on logistic regression models

> Research article (PLoS ONE, 2017) · cited 40× · AI/ML

**Wikidata**: [openalex:W2611545926](https://www.wikidata.org/wiki/openalex:W2611545926)  
**Source**: https://4ort.xyz/entity/sample-size-calculation-to-externally-validate-scoring-systems-based-on-logistic-regression-models