1. From the University of California, Los Angeles, Los Angeles, CA; Dana-Farber Cancer Institute, Boston, MA; Loyola University Stritch School of Medicine, Maywood, IL; Ohio State University Health Center, and Columbus Community Clinical Oncology Program, Columbus, OH; University of Michigan Medical Center, Ann Arbor, MI; Southwest Oncology Group Statistical Center, and Puget Sound Oncology Consortium, Seattle, WA; and University of Rochester School of Medicine, Rochester, NY.