Affiliation: | 1. University of Kentucky, Lexington, KY, USA 7. Markey Cancer Center, 800 Rose Street, cc445, Lexington, KY, 40536, USA 2. Southwest Oncology Group Statistical Center, Seattle, WA, USA 3. University of Kansas Medical Center, Kansas City, KS, USA 4. Southeast Cancer Control Consortium, Inc. CCOP, Winston-Salem, NC, USA 5. University of California at Irvine, Orange, CA, USA 6. University of Michigan Medical Center, Ann Arbor, MI, USA
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