1. Department of Radiology and Biomedical Imaging, University of California at San Francisco, San Francisco, CA, USA
2. Department of Radiation Oncology, University of New Mexico, Albuquerque, NM, USA
3. G.E. Healthcare, Waukesha, WI, USA
4. Department of Radiology, Washington University in St. Louis, St. Louis, MO, USA
5. Department of Radiology, The University of Iowa, Iowa City, IA, USA
6. Department of Radiology, University of Washington, Seattle, WA, USA