[1] Tufts Med Ctr, Hematol Oncol, Boston, MA 02111 USA
[2] NCI, Bethesda, MD 20892 USA
[3] St Louis Univ, Ctr Outcomes Res, St Louis, MO 63103 USA
[4] Univ Texas Southwestern Med Ctr Dallas, Hematol & Bone Marrow Transplant, Dallas, TX 75390 USA
[5] Univ Maryland, Greenebaum Comprehens Canc Ctr, Baltimore, MD 21201 USA
[6] Univ Maryland, Sch Med, Baltimore, MD 21201 USA
[7] Univ Maryland, Baltimore, MD 21201 USA