1. The Wright Center for Graduate Medical Education, Scranton, PA, USA
2. Idaho College of Osteopathic Medicine, Meridian, ID, USA
3. National Institutes of Health Library, Bethesda, MD, USA
4. USA & Zimmerman Associates, Inc., Fairfax, VA, USA
5. Lupus Clinical Trials Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA