RWTH Aachen University, Aachen, Germany
The Alfred Hospital, Melbourne, Australia
Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico
University of Maryland, Baltimore, Maryland, United States
Mayo Clinic Foundation, Rochester, Minnesota, United States
St. Mary's Medical, Richmond, Virginia, United States
University of Washington, Seattle, Washington, United States
Contact Sponsor, Bloomington, Indiana, United States
Contact Sponsor, Bloomington, Indiana, United States
Contact Sponsor, Bloomington, Indiana, United States
Maine Medical Center, Portland, Maine, United States
Baptist Hospital of Miami, Inc.: Baptist Cardiac & Vascular Institute, Miami, Florida, United States
Atlanta Medical Center, Atlanta, Georgia, United States
OSF St. Francis Medical Center, Peoria, Illinois, United States