[1] Univ Washington, Sch Med, Dept Family Med, Box 356390, Seattle, WA 98195 USA
[2] LUNGev Fdn, Chicago, IL USA
[3] Morehouse Sch Med, Satcher Hlth Leadership Inst, Atlanta, GA 30310 USA
[4] Fred Hutchinson Canc Ctr, Clin Res Div, Seattle, WA USA
[5] Univ Washington, Sch Med, Dept Orthopaed & Sports Med, Seattle, WA USA