1. Kansas University School of Medicine Wichita
2. Kansas University School of Medicine Kansas City
3. Faculty of Behavioral, Management and Social sciencesUniversity of Twente Drienerlolaan Enschede Netherlands
4. Klinikum Saarbrücken, Saarbrücken, Germany, and Technische Universität München Munich Germany
5. National Data Bank for Rheumatic Diseases Wichita KS