Pulmonary and Critical Care, Medicine, School of Medicine, Creighton University
VA Nebraska Western Iowa Health Care System (United States, Omaha)
Barnes-Jewish Hospital (United States, St Louis)
Washington University in St. Louis (United States, St Louis) - WUSTL
Lovelace Respiratory Research Institute (United States, Albuquerque) - LRRI
University of Michigan Medical School (United States, Ann Arbor) - UMMS
Centre Hospitalier Départemental Vendée (France, La Roche-sur-Yon)