[1] Univ Washington, Dept Med, Seattle, WA USA
[2] Baylor Coll Med, Dept Med, Div Infect Dis, Houston, TX 77030 USA
[3] Michael E DeBakey VA Med Ctr, Med Care Line, Sect Infect Dis, Houston, TX USA
[4] Montefiore Med Ctr, Div Infect Dis, 3411 Wayne Ave 4H, Bronx, NY 10467 USA