Edison Fears Hidden Perils of the X-Rays (1903)(web.archive.org)
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Edison Fears Hidden Perils of the X-Rays (1903)
https://web.archive.org/web/20071111054257/http://home.gwi.net/~dnb/read/edison/edison_xrays.htm
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https://web.archive.org/web/20071111054257/http://home.gwi.net/~dnb/read/edison/edison_xrays.htm
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