[1] Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
[2] Touro Univ Nevada, Coll Osteopath Med, Henderson, NV 89014 USA
[3] Univ Calif Irvine, Sch Med, Irvine, CA USA
[4] Univ Calif Riverside, Sch Med, Riverside, CA USA
[5] Univ Calif Irvine, Dept Med, Div Hematol & Oncol, Orange, CA USA
[6] Univ Calif Irvine, Dept Surg, Orange, CA 92868 USA
[7] Univ Calif Irvine, Dept Radiol Sci, Orange, CA 92868 USA