1. Department of Pathology, University of California, San Francisco, San Francisco, CA 94110, USA.
2. Department of Anesthesia and Perioperative Care, University of California, San Francisco, San Francisco, CA 94110, USA.
3. The Keck Advanced Microscopy Laboratory, Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94110, USA.
4. Department of Respiratory, Inflammation and Autoimmunity, MedImmune, Gaithersburg, MD 20878, USA.
5. Department of Respiratory, Inflammation and Autoimmunity, MedImmune, Cambridge CB21 6GH, UK.
6. Department of Medicine, University of California, San Francisco, San Francisco, CA 94110, USA.
7. Department of Surgery, University of California, San Francisco, San Francisco, CA 94110, USA.
8. Department of Pulmonary Medicine, Jikei University, Tokyo 105 8461, Japan.
9. Genetics, Development, and Behavioral Sciences, University of California, San Francisco, San Francisco, CA 94110, USA.