1 Division of Pulmonary and Critical Care Medicine, Dept of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA.
2 Rocky Mountain Regional VA Medical Center, Aurora, CO, USA.
3 Université Paris-Saclay, Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (Assistance Publique-Hôpitaux de Paris), Le Kremlin-Bicêtre, France.
4 Providence Veterans Affairs Medical Center and Division of Cardiovascular Medicine, Warren Alpert Medical School of Brown University, Providence, RI, USA.
5 Division of Cardiovascular Medicine, Dept of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA.
6 Veterans Affairs Boston Healthcare System, Boston, MA, USA.