1. 1) McQueen FM, Benton N, Perry D, Crabbe J, Robinson E, Yeoman S, McLean L, Stewart N:Bone edema scored on magnetic resonance imaging scans of the dominant carpus at presentation predicts radiographic joint damage of the hands and feet six years later in patients with rheumatoid arthritis. Arthritis Rheum 2003;48:1814-1827
2. 2) Hoving JL, Buchbinder R, Hall S, Lawler G, Coombs P, McNealy S, Bird P, Connell D:A comparison of magnetic resonance imaging, sonography, and radiography of the hand in patients with early rheumatoid arthritis. J Rheumatol 2004;31:663-675
3. 4) Wakefield RJ, Balint PV, Szkudlarek M, Filippucci E, Backhaus M, D'Agostino MA, Sanchez EN, Iagnocco A, Schmidt WA, Bruyn GA, Kane D, O'Connor PJ, Manger B, Joshua F, Koski J, Grassi W, Lassere MN, Swen N, Kainberger F, Østergaard M, Brown AK, Machold KP, Conaghan PG;OMERACT 7 Special Interest Group:Musculoskeletal ultrasound including definitions for ultrasonographic pathology. J Rheumatol 2005;32:2485-2487
4. 6) Szkudlarek M, Court-Payen M, Jacobsen S, Klarlund M, Thomsen HS, Østergaard M:Interobserver agreement in ultrasonography of the finger and toe joints in rheumatoid arthritis. Arthritis Rheum 2003;48:955-962
5. 8) D'Agostino M-A, Terslev L, Aegerter P, Backhaus M, Balint P, Bruyn GA, Filippucci E, Grassi W, Iagnocco A, Jousse-Joulin S, Kane D, Naredo E, Schmidt W, Szkudlarek M, Conaghan PG, Wakefield RJ:Scoring ultrasound synovitis in rheumatoid arthritis:a EULAR-OMERACT ultrasound taskforce―Part 1:definition and development of a standardised, consensus-based scoring system. RMD Open 2017;3:e000428