| Affiliation: | 1. Department of Radiology, Division of Interventional Radiology, Denver Health Medical Center, 777 Bannock Street, MC 0024, Denver, CO 80204;2. Department of Radiology and Biomedical Imaging, Division of Interventional Radiology, University of California, San Francisco, 505 Parnassus Avenue, M-361, San Francisco, CA 94143;3. Department of Internal Medicine, Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of California, San Francisco, 505 Parnassus Avenue, M-361, San Francisco, CA 94143 |
