# James P. O'Callaghan

> researcher at NIOSH

**Wikidata**: [Q64408371](https://www.wikidata.org/wiki/Q64408371)  
**Source**: https://4ort.xyz/entity/james-p-o-callaghan


## References

1. LinkedIn
2. U.S. Department of Health and Human Services Employee Directory
3. [Source](https://www.linkedin.com/in/james-o-callaghan-71b9985)