Affiliation: | 1.Department of Internal Medicine, Centre for Rheumatic Diseases,Tampere University Hospital,Tampere,Finland;2.Helsinki Medical Imaging Center,University of Helsinki,Helsinki,Finland;3.Orton Foundation,Helsinki,Finland;4.Medcare Foundation,??nekoski,Finland;5.Jyv?skyl? Central Hospital,Jyv?skyl?,Finland;6.Helsinki University Central Hospital,Helsinki,Finland;7.Sein?joki Central Hospital,Sein?joki,Finland;8.Lappeenranta Central Hospital,Lappeenranta,Finland;9.Oulu University Hospital,Oulu,Finland;10.Turku University Hospital,Turku,Finland |