[1] Univ Colorado, Canc Ctr, Aurora, CO USA
[2] Univ Colorado, Canc Ctr, Biostat Core, Aurora, CO USA
[3] Ottawa Hosp, Canc Ctr, Ottawa, ON, Canada
[4] Ohio State Univ, Comprehens Canc Ctr, Columbus, OH USA
[5] Univ N Carolina, Lineberger Comprehens Canc Ctr, Chapel Hill, NC USA
[6] Univ Calif San Diego, Moores Canc Ctr, San Diego, CA USA
[7] Univ Penn, Abramson Canc Ctr, Philadelphia, PA USA