[1] Univ Michigan Hlth Syst, Univ Hosp, Dept Radiol, Ann Arbor, MI 48109 USA
[2] Univ Michigan Hlth Syst, Univ Hosp, Dept Surg, Ann Arbor, MI 48109 USA
[3] Univ Michigan Hlth Syst, Univ Hosp, Dept Mol & Integrat Physiol, Ann Arbor, MI 48109 USA
[4] Mayo Clin, Dept Internal Med, Rochester, MN USA
[5] Mayo Clin, Dept Radiol, Rochester, MN USA
[6] Johns Hopkins Univ, Sch Med, Russell H Morgan Dept Radiol & Radiol Sci, Baltimore, MD USA
[7] Univ Calif Los Angeles, David Geffen Sch Med, Dept Radiol, Los Angeles, CA 90095 USA
[8] NYU, Med Ctr, Dept Radiol, New York, NY 10016 USA
[9] Northwestern Univ, Feinberg Sch Med, Dept Radiol, Chicago, IL 60611 USA
[10] Harvard Univ, Beth Israel Deaconess Med Ctr, Sch Med, Dept Radiol, Boston, MA 02215 USA
[11] Vanderbilt Univ, Dept Surg, Nashville, TN 37240 USA
[12] Univ Texas MD Anderson Canc Ctr, Dept Radiol, Houston, TX 77030 USA
[13] Massachusetts Gen Hosp, Dept Radiol, Boston, MA 02114 USA