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| May 12, 2000 | Elizabeth F. Nelson, M.D. | |
| Dear
Dr. Kirsch,
I have been using the Alpha-Stimulator for about one year. I have found it very easy to use and quiet effective. In the past I hve used the Liss Stimulator but have found it cumbersome to use and not especially effective. I have used the Brain Tuner developed by Robert Beck, Ph.D. I have also found the Alpha-Stimulator to be more effective. Thank you for your willingness to do the research to validate the efficacy of Cranial Electrotherapy Stimulation. Sincerely yours, Elizabeth F. Nelson,
M.D.
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