[1] Texas Tech Univ, Hlth Sci Ctr, Dept Internal Med, Lubbock, TX 79409 USA
[2] Texas Tech Univ, Hlth Sci Ctr, Lubbock, TX 79409 USA
[3] Texas Tech Univ, Hlth Sci Ctr, Southwest Canc Ctr, Lubbock, TX 79409 USA
[4] Univ Texas MD Anderson Canc Ctr, Dept Invest Canc Therapeut, Lubbock, TX USA
[5] Univ Med Ctr, Lubbock, TX USA
[6] Texas Tech Univ, Hlth Sci Ctr, Dept Hematol Oncol, Lubbock, TX 79409 USA