[1] Univ Texas Hlth Sci Ctr San Antonio, Mays Canc Ctr, San Antonio, TX 78229 USA
[2] Univ Texas Hlth San Antonio, San Antonio, TX USA
[3] Mays Canc Ctr, Hematol Oncol Div, UT Hlth San Antonio, San Antonio, TX USA
[4] Univ Texas Hlth Sci Ctr San Antonio, Dept Epidemiol & Biostat, San Antonio, TX 78229 USA
[5] Univ Texas Hlth San Antonio MD Anderson Canc Ctr, San Antonio, TX USA
[6] Hematol Oncol Div, San Antonio, TX USA