[1] Univ Calif San Francisco, Colitis & Crohns Dis Ctr, Div Gastroenterol, Dept Med, San Francisco, CA 94143 USA
[2] Univ Calif San Francisco, Div Pulm & Crit Care Med, Dept Med, San Francisco, CA 94143 USA
[3] Univ Calif Santa Barbara, Inst Marine Sci, Santa Barbara, CA 93106 USA
[4] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA
[5] Univ Calif San Francisco, Dept Anesthesia & Perioperat Care, San Francisco, CA 94143 USA
[6] US DOE, Joint Genome Inst, Walnut Creek, CA USA
[7] Natl Jewish Hlth, Div Pulm & Crit Care Med, Dept Med, Denver, CO USA
[8] Penn State Univ, Div Biostat, Dept Publ Hlth Sci, Hershey, PA USA
[9] Univ Texas Med Branch Galveston, Div Allergy Pulm Immunol Crit Care & Sleep, Dept Internal Med, Galveston, TX USA
[10] Washington Univ, Div Pulm & Crit Care Med, Dept Med, St Louis, MO 63130 USA
[11] Univ Wisconsin, Div Pulm & Crit Care Med, Dept Med, Sch Med & Publ Hlth, Madison, WI 53706 USA
[12] Columbia Univ Coll Phys & Surg, Div Pulm Allergy & Crit Care Med, Dept Med, New York, NY 10032 USA
[13] Duke Univ, Div Pulm Allergy & Crit Care Med, Dept Med, Durham, NC 27706 USA
[14] Wake Forest Univ Hlth Sci, Sect Pulm Crit Care Allergy & Immunol Dis, Dept Internal Med, Winston Salem, NC USA
[15] Univ Calif San Diego, Allergy & Immunol Sect, Dept Med, San Diego, CA 92103 USA
[16] Brigham & Womens Hosp, Div Pulm & Crit Care Med, Dept Med, Boston, MA 02115 USA
[17] Harvard Univ, Sch Med, Boston, MA 02115 USA