# Artificial intelligence to evaluate postoperative pain based on facial expression recognition

> Research article (European Journal of Pain, 2022) · cited 71× · AI/ML

**Wikidata**: [openalex:W4220825165](https://www.wikidata.org/wiki/openalex:W4220825165)  
**Source**: https://4ort.xyz/entity/artificial-intelligence-to-evaluate-postoperative-pain-based-on-facial-expression-recognition