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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Daly I. de B., Shellshear K. E. The use of thermionic valves with the string galvanometer. J Physiol. 1920 Dec 7;54(4):287–291. doi: 10.1113/jphysiol.1920.sp001930. [DOI] [PMC free article] [PubMed] [Google Scholar]
