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This monograph represents an expansion of the author's Caldwell lecture, given in 1927, before the American Roentgen Ray Society's meeting in Montreal. It is a reprint with additions, from the American Journal of Roentgenology and Radium Therapy, Volume XVIII, No. 5, November, 1927. In the present volume, the earlier chapters particularly, which touch on certain historical and physical aspects of roentgen-rays have been enlarged and expanded by various additional material. The later chapters have been written particularly for hospital authorities who seek to improve the working conditions in their roentgen-ray departments. The opportunity has been taken to include the International
Roentgenology. Its Early History, Some Basic Physical Principles and the Protective Measures.. Ann Intern Med. 1929;2:696–697. doi: 10.7326/0003-4819-2-7-696
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Published: Ann Intern Med. 1929;2(7):696-697.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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