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2-1. Background and development of medical Lasers in the 1970s | D&PS
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Optical Sources. History of Lasers In 1917, Einstein predicted the existence of spontaneous and stimulated emission by which an atom can emit radiation. - ppt download
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1-2. Birth of Medical Laser in the 1960s: Background | D&PS
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3-2. History of medical laser in the 1980s | D&PS
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