# Key criteria for the ethical acceptability of COVID-19 human challenge studies: Report of a WHO Working Group

> Research article (Vaccine, 2020) · cited 105× · AI/ML

**Wikidata**: [openalex:W3097114738](https://www.wikidata.org/wiki/openalex:W3097114738)  
**Source**: https://4ort.xyz/entity/key-criteria-for-the-ethical-acceptability-of-covid-19-human-challenge-studies-report-of-a-who-working-group