[1] Univ Texas Hlth San Antonio, Mays Canc Ctr, San Antonio, TX USA
[2] Audie L Murphy Vet Mem Hosp, Dept Vet Affairs VA, South Texas Vet Hlth Care Syst, San Antonio, TX USA
[3] Univ Texas Hlth San Antonio, Mays Canc Ctr, Dept Med, Div Hematol Oncol, 7979Wurzbach Rd,MC 8232, San Antonio, TX 78229 USA