[1] The Ohio State University Comprehensive Cancer Center,Department of Medicine
[2] Alliance for Clinical Trials in Oncology Statistics and Data Center,undefined
[3] Mayo Clinic,undefined
[4] Greenebaum Cancer Center,undefined
[5] University of Maryland,undefined
[6] Comprehensive Cancer Center of Wake Forest University,undefined
[7] University of Iowa,undefined
[8] Monter Cancer Center,undefined
[9] Hofstra North Shore-Long Island Jewish School of Medicine,undefined
[10] Roswell Park Cancer Institute,undefined
[11] University of Alabama at Birmingham,undefined
[12] University of Chicago,undefined