1. Pediatric Cardiology UnitCentre Universitaire Romand de Cardiologie et Chirurgie Cardiaque Pédiatrique, University of Geneva and Lausanne Lausanne Switzerland
2. David Geffen School of Medicine, University of California Los Angeles Los Angeles CA USA
3. Division of Internal MedicineUniversity of Texas Southwestern Dallas TX USA
4. Actelion Pharmaceuticals Ltd Allschwil Switzerland
5. National Pulmonary Hypertension UnitMater Misericordiae University Hospital Dublin Ireland
6. University of Giessen and Marburg Lung Center, Giessen, Germany, member of the German Center of Lung Research, and Department of MedicineImperial College London London UK
7. Department of Respiratory MedicineHannover Medical School and German Centre for Lung Research Hannover Germany
8. Department of Internal Medicine II, Division of CardiologyMedical University of Vienna Vienna Austria
9. Department of Internal MedicineUniversity of Michigan Health System Ann Arbor MI USA
10. Department of MedicineUniversity of California San Diego CA USA
11. APHP, Centre de Référence de l'Hypertension Pulmonaire, Service de Pneumologie et Soins Intensifs, CHU BicêtreUniversité Paris-Sud, Le Kremlin-Bicêtre Paris France
12. Division of Pulmonary and Critical Care Medicine, Department of MedicineCedars Sinai Medical Center Los Angeles CA USA
13. Department of Experimental, Diagnostic and Specialty Medicine (DIMES)Bologna University Hospital Bologna Italy