[1] BAYLOR UNIV, COLL MED, HEMATOL SECT, HOUSTON, TX 77031 USA
[2] BAYLOR UNIV, COLL MED, ATHEROSCLEROSIS SECT, HOUSTON, TX 77031 USA
[3] BAYLOR UNIV, COLL MED, DEPT MED, IMMUNOHEMATOL RES LAB, HOUSTON, TX 77031 USA
[4] VET ADM HOSP, HOUSTON, TX 77031 USA
[5] METHODIST HOSP, HOUSTON, TX 77025 USA