1. Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 S Kingshighway Blvd, St Louis, MO 63110.
2. Department of Radiology, St. Louis University School of Medicine, St. Louis, MO.
3. Department of Radiology, Montpellier Cancer Institute, INSERM U1194, University of Montpellier, Montpellier, France.
4. Department of Radiology, Mayo Clinic Florida, Jacksonville, FL.
5. Department of Radiology, Mayo Clinic, Rochester, MN.
6. Department of Radiology, Moffitt Cancer Center, Tampa, FL.
7. Mayo Clinic School of Medicine, Mayo Clinic Hospital, Phoenix, AZ.