9Dchn UM,Ejbjerg BJ,Court-Payen M,et al.Are bone erosions de- tected by magnetic resonance imaging and ultrasonography true ero- sions?A comparison with computed tomography in rheumatoid arthritis metacarpophalangeal joints[J].Arthritis Res Ther, 2006,8 (4) : 110-119.
10Hammer HB,Kvien TK.Comparisons of 7-to 78-joint ultrasono a- phy scores:all different joint combinations show equal response to adalimumab treatment in patients with rheumatoid arthritis[J].Arthritis Res Ther,2011,13(3) :78-86.