# John Callaghan

> Canadian cardiac surgeon (1923-2004)

**Wikidata**: [Q14949540](https://www.wikidata.org/wiki/Q14949540)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_Callaghan_(physician))  
**Source**: https://4ort.xyz/entity/john-callaghan-q14949540


## References

1. [Source](https://www.alberta.ca/aoe-john-callaghan)
2. Virtual International Authority File