# Direct application of an ECG-based sleep staging algorithm on reflective photoplethysmography data decreases performance

> Research article (BMC Research Notes, 2020) · cited 15× · AI/ML

**Wikidata**: [openalex:W3103253015](https://www.wikidata.org/wiki/openalex:W3103253015)  
**Source**: https://4ort.xyz/entity/direct-application-of-an-ecg-based-sleep-staging-algorithm-on-reflective-photoplethysmography-data-decreases-performance