Affiliation: | (1) University of Kansas Medical Center, Kansas City, KS;(2) Southwest Oncology Group Statistical Center, Seattle, WA;(3) University of Utah Medical Center, Salt Lake City, UT;(4) Thompson Cancer Survival Center, Knoxville, TN;(5) Wichita CCOP, Wichita, KS;(6) University of Texas Southwestern, Dallas, TX, USA |