[1] Univ Washington, Dept Med, Div Pulm Crit Care & Sleep Med, Seattle, WA USA
[2] Duke Univ, Med Ctr, Dept Med, Dept Psychiat & Behav Sci,Behav Med Div,Pulm Div, Durham, NC 27710 USA
[3] St Vincents Univ Hosp, Natl Referral Ctr Adult Cyst Fibrosis, Dublin, Ireland
[4] Univ Pittsburgh, Med Ctr, Div Pulm Allergy & Crit Care Med, Pittsburgh, PA USA
[5] Cyst Fibrosis Fdn, Bethesda, MD USA
[6] Washington Univ, Sch Med, Dept Med, Div Pulm & Crit Care Med, St Louis, MO 63110 USA
[7] Univ Colorado, Div Pulm Sci & Crit Care Med, Anschutz Med Campus, Aurora, CO USA
[8] Univ Minnesota, Dept Med, Div Pulm Allergy Crit Care Med & Sleep, Box 736 UMHC, Minneapolis, MN 55455 USA
[9] Perelman Sch Med, Div Pulm Allergy & Crit Care, Dept Med, Paul F Harron Jr Lung Ctr, Philadelphia, PA USA
[10] Texas Childrens Hosp, Baylor Coll Med, Sect Pediat Pulmonol, Dept Pediat, Houston, TX 77030 USA
[11] USC, Keck Sch Med, Los Angeles, CA USA
[12] Hosp Sick Children, Div Resp Med, Toronto, ON, Canada
[13] Loyola Univ, Med Ctr, Dept Internal Med, 2160 S 1st Ave, Maywood, IL 60153 USA
[14] Starling Phys, Dept Pulm & Crit Care, Hartford, CT USA