[1] UNIV TEXAS, MD ANDERSON HOSP & TUMOR INST, DEPT CHEMOTHERAPY RES, HOUSTON, TX 77030 USA
[2] UNIV TEXAS, MD ANDERSON HOSP & TUMOR INST, DEPT PATHOL, HOUSTON, TX 77030 USA
[3] UNIV TEXAS, MD ANDERSON HOSP & TUMOR INST, DEPT GENET, HOUSTON, TX 77030 USA