University of Chicago, University of Chicago, University of Chicago, University of Minnesota - Minneapolis - Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Rush University - Rush University Medical Center, Rush University - Rush University Medical Center, Rush University - Rush University Medical Center, Emory University, Emory University, University of Pennsylvania - Perelman School of Medicine, University of Pennsylvania - Perelman School of Medicine, University of Michigan at Ann Arbor, Oregon Health and Science University, Oregon Health and Science University, Northwestern University - Feinberg School of Medicine, Northwestern University - Feinberg School of Medicine, Johns Hopkins University, University of California, San Francisco (UCSF), University of California, San Francisco (UCSF), Cardiff University, Northwestern University, University of Chicago and University of Chicago

University of Chicago, affiliation not provided to SSRN, Northwestern University, Northwestern University and affiliation not provided to SSRN