[1] Univ Washington, Dept Med, Div Pulm Crit Care & Sleep Med, Seattle, WA USA
[2] Fred Hutchinson Canc Ctr, Clin Res Div, Seattle, WA USA
[3] Univ Washington, Sch Publ Hlth, Dept Epidemiol, Seattle, WA USA
[4] Kaiser Permanente Washington Hlth Res Inst, Seattle, WA USA
[5] Univ Washington, Dept Med, Div Allergy & Infect Dis, Seattle, WA USA
[6] Univ Washington, Dept Med, Div Hematol, Seattle, WA USA
[7] Swedish Canc Inst, Seattle, WA USA
[8] Univ Washington, Dept Global Hlth, Seattle, WA USA
[9] Univ Washington, Dept Hlth Syst & Populat Hlth, Seattle, WA USA
[10] Vet Affairs Puget Sound Hlth Care Syst, Seattle, WA USA
[11] Fred Hutchinson Canc Res Ctr, Clin Res Div, 1100 Fairview Ave North,CB D5-360, Seattle, WA 98109 USA