[1] Med Univ Graz, Dept Internal Med, Div Pulmonol, Graz, Austria
[2] Ludwig Boltzmann Inst Lung Vasc Res Graz, Graz, Austria
[3] Univ Maryland, Sch Med, Div Cardiovasc Med, Baltimore, MD 21201 USA
[4] Univ Maryland, Inst Hlth Comp, Bethesda, MD USA
[5] Med Univ Graz, Inst Med Informat Stat & Documentat, Graz, Austria
[6] Univ Toronto, Dept Med, Div Cardiol, Toronto, ON, Canada
[7] Aristotle Univ Thessaloniki, Cardiol Dept, Thessaloniki, Greece
[8] AHEPA Univ Hosp, Thessaloniki, Greece
[9] Univ Penn, Perelman Sch Med, Dept Med & Epidemiol, Philadelphia, PA USA
[10] Univ Paris Saclay, Hop Bicetre, Assistance Publ Hop Paris, Serv Pneumol & Soins Intens Resp,ERN LUNG,Inserm U, Le Kremlin Bicetre, France