# An Unobtrusive and Calibration-free Blood Pressure Estimation Method using Photoplethysmography and Biometrics

> Research article (Scientific Reports, 2019) · cited 96× · AI/ML

**Wikidata**: [openalex:W2952383525](https://www.wikidata.org/wiki/openalex:W2952383525)  
**Source**: https://4ort.xyz/entity/an-unobtrusive-and-calibration-free-blood-pressure-estimation-method-using-photoplethysmography-and-biometrics