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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BALINT M. TWO-WAY TELEPHONE SYSTEM FOR SEMINARS USING POST-OFFICE TRUNK LINES. Lancet. 1964 Dec 12;2(7372):1293–1293. doi: 10.1016/s0140-6736(64)92759-x. [DOI] [PubMed] [Google Scholar]
- Peter T., Harper R., Luxton M., Pring M., McDonald R., Sloman G. Personal telephone electrocardiogram transmitter. Lancet. 1973 Nov 17;2(7838):1110–1112. doi: 10.1016/s0140-6736(73)90932-x. [DOI] [PubMed] [Google Scholar]