1. Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, California
2. Department of Pathology, University of Giessen, Giessen, Germany
3. Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Quebec, Quebec, Canada
4. Division of Pulmonary and Critical Care Medicine, Indiana University, Bloomington, Indiana
5. Division of Pediatric Pulmonary and Critical Care Medicine, Vanderbilt University, Nashville Tennessee
6. Division of Pulmonary and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
7. Inserm Université Paris Sud–Centre chirurgical Marie Lannelongue 999, Université Paris Sud–Paris Saclay, Hôpital Marie Lannelongue, Le Plessis Robinson, France; and
8. Service de Pneumologie, Centre de Référence de l’Hypertension Pulmonaire, Hôpital Bicêtre, Assistance Publique–Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France