title: The emergence of radiology as a major influence in American medicine. Caldwell Lecture, 1970.
mesh_terms: D004501:Education, Medical; D004521:Educational Measurement; D005544:Forecasting; D010823:Physician Assistants / Q000193:education; D011871:Radiology / Q000193:education; D013679:Technology, Radiologic; D014481:United States; D000078329:Workforce