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October 21, 1933

Light Therapy.

JAMA. 1933;101(17):1339. doi:10.1001/jama.1933.02740420059031

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Succeeding ages have practiced light therapy in accordance with limited experience, out of which arose unorthodox opinions and a literature based on empiricism. Modern biologic sciences have sought and attained concrete evidence of the therapeutic efficacy of light, as evidenced by the recent literature which formulates opinions on the basis of controllable facts. The aim of this book is to differentiate facts from current fallacies and to present a serviceable technic for the employment of various agencies used in light therapy. The author has drawn on authoritative sources to such a proportion that the work impresses one as a commentary rather than an exposition based on his personal experience, a characteristic amounting to self effacement. Theory is weighed against fact, physics is correlated with physiology, and clinical results are shown to be dependent on biophysical factors. Separate chapters have been devoted to a review and an analysis of the physical

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