... VanderbiltUniversity, Nashville, TN; Yusuf Yazici, NYU Hospital for JointDiseases, New York, NY; Martin Bergman, Taylor Hospital,Ridley Park, PA; Christopher Swearingen, Medical University of South Carolina, ... Maria Majdan, Medical Uni-versity of Lublin, Lublin; Wojciech Romanowski, Poznan Rheu-matology Center in Srem, Srem; Witold Tlustochowicz,Military Institute of Medicine, Warsaw; Danuta Kapolka, ... Charleston, SC; Study Center: TuulikkiSokka, Jyväskylä Central Hospital, Jyväskylä, Medcare Oy,Äänekoski, Finland; Hannu Kautiainen, Medcare Oy, Ääneko-ski, Finland; Theodore Pincus, New York...