1. Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
2. Department of Cardiology, University Hospital Freiburg, 79106 Freiburg, Germany.
3. Program in Membrane Biology and Division of Nephrology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
4. Department of General Internal Medicine, Clinical Immunology and Infectious Diseases, University Hospital of Innsbruck, A-6020 Innsbruck, Austria.
5. Ragon Institute Imaging Core, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
6. Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
7. Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA.