title: Lessons from history.
authors.affiliation: Department of Radiology, Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229-3039, USA. donnelly.lf@chmcc.org
authors.forename: Lane F
authors.initials: LF
authors.lastname: Donnelly
mesh_terms: D049673:History, 20th Century; D006801:Humans; D011829:Radiation Dosage; D011832:Radiation Injuries / Q000266:history*; D011874:Radiometry; D014057:Tomography, X-Ray Computed / Q000009:adverse effects / Q000266:history*