[1] Thomas Jefferson Univ, Div Intervent Radiol, Philadelphia, PA USA
[2] Albert Einstein Med Ctr, Dept Radiol, Philadelphia, PA 19141 USA
[3] Mem Sloan Kettering Canc Ctr, Dept Radiol, New York, NY 10021 USA
[4] Radiol Imaging Associates, Greenwood Village, CO USA
[5] Univ Virginia Hlth Syst, Dept Radiol, Charlottesville, VA USA
[6] NW Mem Hosp, Dept Radiol, Chicago, IL 60611 USA
[7] Stanford Univ, Med Ctr, Div Intervent Radiol, Stanford, CA 94305 USA