Improved self-luminous markers developed
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Article
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1953
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Elsevier Science
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English
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## 474 CURRENT ToPIcs [J. F. I. 200-/0 for a wide range of radiation. Its diameter and its cost is less than a silver dollar and it will last longer than the man who wears it. The instrument will pick up and accumulate, even after many readings. Its principle: the more radiation, the more fluores