# Development of a Finger-Ring-Shaped Hybrid Smart Stethoscope for Automatic S1 and S2 Heart Sound Identification

> Research article (Sensors, 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W3201278480](https://www.wikidata.org/wiki/openalex:W3201278480)  
**Source**: https://4ort.xyz/entity/development-of-a-finger-ring-shaped-hybrid-smart-stethoscope-for-automatic-s1-and-s2-heart-sound-identification