[1] Univ N Carolina, Dept Biostat, Chapel Hill, NC 27514 USA
[2] Univ Michigan, Div Pulm & Crit Care, Ann Arbor, MI 48109 USA
[3] Columbia Univ, Dept Med, New York, NY USA
[4] Wake Forest Univ, Ctr Genom & Personalized Med Res, Winston Salem, NC 27109 USA
[5] Univ Iowa, Dept Radiol, Iowa City, IA 52242 USA
[6] Univ Utah, Dept Internal Med Pulm & Crit Care Med, Salt Lake City, UT USA
[7] Univ Calif Los Angeles, Dept Med, Los Angeles, CA 90024 USA
[8] Univ Michigan, Dept Internal Med, Ann Arbor, MI 48109 USA
[9] Univ Calif San Francisco, Dept Med, Div Pulm Crit Care Sleep & Allergy, San Francisco, CA USA
[10] Univ Nebraska, Dept Internal Med, Div Pulm Crit Care Sleep & Allergy, Omaha, NE 68182 USA