# orphan drug

> regulatory class of pharmaceutical drug

**Wikidata**: [Q1367466](https://www.wikidata.org/wiki/Q1367466)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Orphan_drug)  
**Source**: https://4ort.xyz/entity/orphan-drug


## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. Freebase Data Dumps. 2013
3. YSO-Wikidata mapping project
4. Quora
5. National Library of Israel
6. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)