1. Scott & White Memorial Hospital/Texas A&M Health Sciences Center, Radiology, Temple, TX, USA;
2. Siemens AG, Erlangen, Germany;
3. Cancer Center of SUN YAT-SEN University, Radiology, Guangzhou, China;
4. University of Missouri - Kansas City St Luke's Hospital, Radiology, Kansas City, MO, USA;
5. Siemens Healthcare USA, Malvern, PA, USA;
6. Methodist Hospital, San Antonio, TX, USA;
7. University of Texas - Medical Branch, Radiology, Galveston, TX, USA