[1] Univ Washington, Pulm & Crit Care, Seattle, WA 98195 USA
[2] Univ Washington, Med, Seattle, WA 98195 USA
[3] Fred Hutchinson Canc Res Ctr, Div Clin Res, 1124 Columbia St, Seattle, WA 98104 USA
[4] Univ Washington, Seattle, WA 98195 USA
[5] Univ Washington, Pulm Crit Care Med, Seattle, WA 98195 USA
[6] VA Connecticut Healthcare Syst, Internal Med, Madison, CT USA
[7] Yale Univ, Madison, CT USA
[8] VA Med Ctr W Los Angeles, Pulm & Crit Care, Los Angeles, CA USA
[9] Atlanta Vet Affairs Med Ctr, Med, Atlanta, GA USA
[10] Baylor Coll Med, Infect Dis, Michael E DeBakey Vet Affairs Med Ctr, Houston, TX 77030 USA
[11] Baylor Coll Med, Dept Med, Houston, TX 77030 USA
[12] Connecticut Healthcare Syst, Vet Affairs, West Haven, CT USA
[13] Yale Univ, Sch Med & Publ Hlth, West Haven, CT USA
[14] Univ Washington, Div Pulm & Crit Care, Seattle, WA 98195 USA