# Surgical Risk Is Not Linear: Derivation and Validation of a Novel, User-friendly, and Machine-learning-based Predictive OpTimal Trees in Emergency Surgery Risk (POTTER) Calculator

> Research article (Annals of Surgery, 2018) · cited 300× · AI/ML

**Wikidata**: [openalex:W2888528836](https://www.wikidata.org/wiki/openalex:W2888528836)  
**Source**: https://4ort.xyz/entity/surgical-risk-is-not-linear-derivation-and-validation-of-a-novel-user-friendly-and-machine-learning-based-predictive-opt