1. From Institute for Experimental and Clinical Pharmacology and Toxicology (R.M.), University Erlangen-Nuremberg, Germany; Clinical Pharmacology Unit (R.M., E.S., R.B., F.S., R.H.B.), Institute of Experimental and Clinical Pharmacology, University Medical Center Hamburg-Eppendorf, Germany; Department of Biostatistics (V.X., L.M.S.), Boston University School of Public Health, Boston, Mass; Department of Radiology (J.F.P.), Tufts-New England Medical Center, Boston, Mass; The National Heart, Lung, and...