# ptosis

> eye disease characterized by the drooping or falling of the upper eyelid

**Wikidata**: [Q622427](https://www.wikidata.org/wiki/Q622427)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ptosis_(eyelid))  
**Source**: https://4ort.xyz/entity/ptosis


## References

1. Obesity as a Potential Risk Factor for Blepharoptosis: The Korea National Health and Nutrition Examination Survey 2008-2010.
2. Disease Ontology
3. Symptom Ontology
4. Monarch Disease Ontology release 2018-06-29
5. Freebase Data Dumps. 2013
6. [Identifiers.org](https://registry.identifiers.org/registry/doid)
7. Human Phenotype Ontology release 2018-03-08
8. UMLS 2023
9. Great Norwegian Encyclopedia
10. National Library of Israel Names and Subjects Authority File
11. GF WordNet
12. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)