# A core outcome set for all types of cardiac surgery effectiveness trials: a study protocol for an international eDelphi survey to achieve consensus on what to measure and the subsequent selection of measurement instruments

> Research article (Trials, 2015) · cited 20× · AI/ML

**Wikidata**: [openalex:W2188078309](https://www.wikidata.org/wiki/openalex:W2188078309)  
**Source**: https://4ort.xyz/entity/a-core-outcome-set-for-all-types-of-cardiac-surgery-effectiveness-trials-a-study-protocol-for-an-international-edelphi-s