1Wakefield R J,Gibbon W W,Conaghan P G,et al.The value of sonography in the detection of bone erosions in patients with rheumatoid arthritis:a comparison with conventional radiography[J].Arthritis Rheum,2000,43(12):2762-2770.
2Lee D,Bouffard J A.Ultrasound of the knee[J].Eur J Ultrasound,2001,14(1):57-71.
3Grobbelaar N,Bouffard J A.Sonography of the knee,a pictorial review[J].Semin Ultrasound CT MR,2000,21(3):231-274.