Affiliation: | 1. Division of Rheumatology & Immunology, University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA;2. VA Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE 68105, USA;3. Division of Allergy & Immunology, University of Nebraska Medical Center, 985990 Nebraska Medical Center, Omaha, NE 68198-5990, USA;1. Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE 68105, USA;2. Department of Internal Medicine, University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA;1. Office of Graduate Studies, Medical Sciences Interdepartmental Area, University of Nebraska Medical Center, 987815 Nebraska Medical Center, Omaha, NE 68198-7815, USA;2. Division of Physical Therapy Education, College of Allied Health Professions, University of Nebraska Medical Center, 984420 Nebraska Medical Center, Omaha, NE 68198-4420, USA;3. College of Allied Health Professions, University of Nebraska Medical Center, 984035 Nebraska Medical Center Omaha, NE 68198-4035, USA;4. Department of Orthopedic Surgery and Rehabilitation, University of Nebraska Medical Center, 984420 Nebraska Medical Center, Omaha, NE 68198-4420, USA;5. College of Medicine, University of Nebraska Medical Center, 984420 Nebraska Medical Center, Omaha, NE 68198-4420, USA;1. Rheumatology Unit, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Bulfinch 165, 55 Fruit Street, Boston, MA 02114, USA;2. Clinical Epidemiology Program, Rheumatology Unit, Division of Rheumatology, Allergy, and Immunology, Mongan Institute, Massachusetts General Hospital, Harvard Medical School, 100 Cambridge Street, Boston, MA 02114, USA;1. Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University School of Medicine, 2440 North Berkshire Road, Charlottesville, VA 22901, USA;2. Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University School of Medicine, 1800 Orleans Street, Suite 6216, Baltimore, MD 21287, USA |