[1] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[2] Univ N Carolina, Chapel Hill, NC USA
[3] US Oncol, St Louis, MN USA
[4] Cent Illinois Hem Onc Ctr, Springfield, IL USA
[5] Cent Illinois CCOP, Decatur, IL USA
[6] Marshfield CCOP, Marshfield, WI USA
[7] Marshfield Clin Fdn Med Res & Educ, Marshfield, WI USA
[8] Grand Rapids Clin Oncol Program, Grand Rapids, IA USA
[9] Grand Rapids Clin Oncol Program, Grand Rapids, MI USA
[10] Boston Univ, Sch Med, Boston, MA 02118 USA