1. From the Department of Medicine II (A.Z., M.H., L.M.M., G.K., B.N., W.S., R.T.S., R.E.M., O.E.), University of Giessen Lung Center, Justus Liebig University Giessen, Giessen, Germany, and Department of Medicine (L.L., N.W.M.), University of Cambridge School of Clinical Medicine, Addenbrooke’s and Papworth Hospitals, Cambridge, UK.