American martyrs to radiology. Frederick Henry Baetjer (1874-1933). 1936.
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AJR, La Jolla, CA 92037, USA.
D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000266:history; D011832:Radiation Injuries / Q000266:history; D011871:Radiology / Q000266:history*; D014481:United States