[1] Hospital de Gran Canaria Dr. Negrin,
[2] University of Las Palmas de Gran Canaria,undefined
[3] Jyväskylä Central Hospital,undefined
[4] Jyväskylä,undefined
[5] and Medcare Oy,undefined
[6] Äänekoski,undefined
[7] Finland; Jyväskylä Central Hospital,undefined
[8] Research Unit,undefined
[9] Spanish Foundation of Rheumatology,undefined
[10] Hospital Sierrallana,undefined
[11] King Christian the Xth Hospital,undefined
[12] Satakunta Central Hospital,undefined
[13] Rauman aluesairaala,undefined
[14] Hôpital Lapeyronie,undefined
[15] Charité – University Medicine Berlin,undefined
[16] Waterford Regional Hospital,undefined
[17] Catholic University of Sacred Heart,undefined
[18] Medisch Spectrum Twente,undefined
[19] Medical University of Lublin,undefined
[20] Szpital Wojewodzki im. Jana Biziela,undefined
[21] Hospital General de Castellón,undefined
[22] Hudiksvall Medical Clinic,undefined
[23] Kings College Hospital,undefined
[24] Meram Medical Faculty,undefined
[25] Selcuk University,undefined
[26] Rheumatology Institut,undefined
[27] Taylor Hospital,undefined
[28] Hospital San Juan Bautista,undefined
[29] New York University Hospital for Joint Diseases,undefined