1. Department of Radiology, Gulhane Military Medical Academy, Ankara, Turkey

2. Department of Radiology, University of Maryland School of Medicine, Baltimore, Maryland, USA

3. Department of Pathology, Veterans Affairs Medical Center, San Diego, California, USA

4. Department of Radiology, Veterans Affairs Medical Center, San Diego, California, USA

5. Teleradiology and Education center, UCSD, San Diego, California, USA