Affiliation: | 1. Department of Medicine, Harvard Medical School, the Division of Rheumatology, Immunology and Allergy, Brigham and Women''s Hospital, and the Jeff and Penny Vinik Center, Boston, Mass;2. Division of Rheumatology, Immunology and Allergy, Brigham and Women''s Hospital, Boston, Mass;3. Division of Pulmonary and Critical Care, Brigham and Women''s Hospital, Boston, Mass;4. Department of Medicine, Harvard Medical School, Boston, Mass, and the Pulmonary and Critical Care Division, Brigham and Women''s Hospital, Boston, Mass |