1. Arthritis and Rheumatism Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, Maryland, USA
2. Departments of Clinical Immunology and Pharmacy, Bethesda, Maryland, USA
3. Nutrition Department, Warren Grant Magnuson, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
4. Social Work Department, Warren Grant Magnuson, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA
5. Rehabilitation Medicine Department, Warren Grant Magnuson, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA