# age group

> set of persons classified by age from birth (infant, newborn) to octogenarians and older (aged, 80 and over)

**Wikidata**: [Q42401304](https://www.wikidata.org/wiki/Q42401304)  
**Source**: https://4ort.xyz/entity/age-group


## References

1. Integrated Authority File
2. IdRef
3. Medical Subject Headings
4. BnF authorities
5. YSO-Wikidata mapping project
6. UMLS 2023
7. [Source](http://vocabularies.unesco.org/browser/thesaurus/en/page/?uri=http://vocabularies.unesco.org/thesaurus/concept1662)
8. FactGrid
9. National Library of Israel Names and Subjects Authority File