# infancy stage

> from 4 weeks to 1 year old

**Wikidata**: [Q49257364](https://www.wikidata.org/wiki/Q49257364)  
**Source**: https://4ort.xyz/entity/infancy-stage


## References

1. Foundational Model of Anatomy
2. Monarch Disease Ontology release 2018-06-29
3. UMLS 2023