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Evaluation of the Activity of Synovitis in Patients with Rheumatoid Arthritis: Value of Power Doppler Ultrasonography.
Joong Mo Ahn, Hyo Keun Lim, Seung Hoon Kim, Sung Hyun Kim, Eun Mi Koh, Jinseok Kim, Hoon Suk Cha
J Korean Soc Med Ultrasound. 2001;20(4):337-342. Published online December 1, 2001
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