MedPix Radiology Teaching Site. This is a fairly comprehensive image and teaching site developed by a faculty member of the Department of Radiology and Radiological Sciences, Uniformed Services of the University Health Sciences, Bethesda, MD. You can ask for information in stages from quiz mode by organ system and ages, can view patient history and the radiograph. Then you click on diagnosis. Note: The database design is patented and some content is copyrighted. Access is free and physicians can obtain Category 1 CME credit by studying the cases.