[1] Med Coll Wisconsin, Milwaukee, WI 53226 USA
[2] NRG Oncol, Philadelphia, PA USA
[3] Princess Margaret Hosp, Toronto, ON M4X 1K9, Canada
[4] Emory Univ, Atlanta, GA 30322 USA
[5] Univ Louisville, Louisville, KY 40292 USA
[6] Thomas Jefferson Univ, Sidney Kimmel Med Coll, Philadelphia, PA 19107 USA
[7] Rabin Med Ctr, Petah Tiqwa, Israel
[8] Univ Texas SW Med Ctr Dallas, Dallas, TX 75390 USA
[9] Cleveland Clin, Cleveland, OH 44106 USA
[10] Johns Hopkins Univ, Baltimore, MD USA
[11] Univ Kentucky, Lexington, KY USA
[12] Univ Calif San Diego, La Jolla, CA 92093 USA
[13] Radiol Associates Sacramento, Sutter Med Grp, Sacramento, CA USA
[14] Southeast Canc Consortium Upstate NCORP, Goldsboro, NC USA
[15] Washington Univ, Sch Med, St Louis, MO USA