[1] Univ Wisconsin, Dept Med Phys, Madison, WI 53705 USA
[2] La Fe Hosp, Radiotherapy Dept, Valencia 46026, Spain
[3] Clin Benidorm, Radiotherapy Dept, Alicante 03501, Spain
[4] Univ Valencia, Dept Atom Mol & Nucl Phys, Burjassot 46100, Spain
[5] Harvard Med Sch, Dana Farber Brigham & Womens Canc Ctr, Boston, MA 02115 USA
[6] Univ Arizona, Dept Radiat Oncol, Tucson, AZ 85724 USA
[7] R&D Elekta Brachytherapy, Waardgelder 1, NL-3903 DD Veenendaal, Netherlands
[8] Boca Raton Community Hosp, Lynn Reg Canc Ctr, Radiat Oncol Dept, Boca Raton, FL 33486 USA
[9] Radion Inc, 20380 Town Ctr Lane,Suite 135, Cupertino, CA 95014 USA
[10] Brown Univ, Alpert Med Sch, Dept Radiat Oncol, Providence, RI 02903 USA
[11] Univ Calif Davis, Comprehens Canc Ctr, Dept Radiat Oncol, Sacramento, CA 95817 USA
[12] Klin Strahlentherapie Radioonkol, UK SH, Campus Kiel,Arnold Heller Str 3,Haus 50, D-24105 Kiel, Germany
[13] Carl Zeiss Meditec AG, Rudolf Eber Str 11, D-73447 Oberkochen, Germany