# toxic heavy metal

> category of substances

**Wikidata**: [Q19904193](https://www.wikidata.org/wiki/Q19904193)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Toxic_heavy_metal)  
**Source**: https://4ort.xyz/entity/toxic-heavy-metal


## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. Monarch Disease Ontology release 2018-06-29
3. [Registros de autoridad de "Materia" de la Biblioteca Nacional de España. Spain open data portal](https://www.bne.es/media/datosgob/catalogo-autoridades/materia/materia-UTF8.zip)
4. National Library of Israel Names and Subjects Authority File