[1] Univ Washington, Harborview Med Ctr, Div Pulm & Crit Care Med, Dept Med, Seattle, WA 98104 USA
[2] Univ Washington, Dept Med Educ, Sch Med, Seattle, WA 98104 USA
[3] Univ Washington, Dept Biobehav Nursing & Hlth Syst, Seattle, WA 98104 USA
[4] Univ Washington, Sch Nursing, Dept Psychosocial & Community Hlth, Seattle, WA 98104 USA
[5] Univ Washington, Program Social & Behav Sci, Dept Hlth Serv, Sch Publ Hlth, Seattle, WA 98104 USA