1. Max-Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (S.R.N., A.F., P.S., L.J., G.M., F.K., C.K., S.G., S.D., W.J., M.L., W.S., R.S., S.S.P.).
2. Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, Giessen, Germany (S.R.N., L.J., G.M., M.B., A. Weiss, B.K., K.T., W.S., R.S., R.T.S., S.S.P.).
3. Institute for Lung Health (ILH), Member of the DZL, Justus Liebig University, Giessen, Germany (P.S., J.W., B.K., W.S., R.S., S.S.P).
4. Pulmonary Hypertension Research Group, CRIUCPQ - Research center of the Quebec Heart and Lung Institute, Department of Medicine, Université Laval, Québec, QC, Canada (A.B., Y.G., S.P., S.B.).
5. Scientific Service Group MRI and µ-CT, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (A. Wietelmann).
6. Department of Pulmonary Medicine, PHEniX Laboratory, Amsterdam Cardiovascular Sciences, Vrije Universiteit, Amsterdam, the Netherlands (F.d.M.).