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Journal Article Photodynamic Action and Diseases Caused by Light Get access Photodynamic Action and Diseases Caused by Light. By Harold Francis Blum, Ph. D. American Chemical Society Monograph Series, No. 85. Cloth. Price, $6.00. Pp. 309, with 50 illustrations. New York: Reinhold Publishing Corporation, 1941. Physical Therapy, Volume 21, Issue 4, July 1941, Page 229, https://doi.org/10.1093/ptj/21.4.229b Published: 01 July 1941
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A 1941 study studied this question.
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