[1] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[2] Radiat Therapy Oncol Grp, Philadelphia, PA USA
[3] Univ Lausanne Hosp CHUV, Lausanne, Switzerland
[4] Mayo Clin, Jacksonville, FL 32224 USA
[5] Univ Texas Hlth Sci Ctr Houston, Sch Nursing, Houston, TX 77030 USA
[6] RTOG, Philadelphia, PA USA
[7] Tel Aviv Univ, Tel Aviv Sourasky Med Ctr, IL-69978 Tel Aviv, Israel
[8] Med Coll Wisconsin, Milwaukee, WI 53226 USA
[9] Univ Edinbugh, Edinburgh, Midlothian, Scotland
[10] Ohio State Univ, Med Ctr, Arthur G James Canc Hosp, Columbus, OH 43210 USA
[11] Radiat Therapy Oncol Grp, Atlanta, GA USA
[12] Emory Univ, Atlanta, GA 30322 USA
[13] Northwestern Univ, Chicago, IL 60611 USA