[1] W Virginia Univ, Mary Babb Randolph Canc Ctr, Robert C Byrd Hlth Sci Ctr, Morgantown, WV 26506 USA
[2] Univ Tennessee, Inst Canc, Knoxville, TN USA
[3] Auxilio Mutuo Canc Ctr, San Juan, PR USA
[4] Loma Linda Univ, Ctr Canc, Div Hematol Oncol, Loma Linda, CA 92350 USA
[5] Millennium Pharmaceut Inc, Cambridge, MA USA
[6] NYU Langone Med Ctr, NYU Clin Canc Inst, New York, NY USA