TY - JOUR AU - Fathi Ahmed, S; Badr, T; Hosny, S M TI - Assessment of synovitis in early rheumatoid arthritis by CXCL13 serum levels and power Doppler ultrasonography: Correlation with disease activity JO - The Egyptian Rheumatologist VL - 35 PY - 2013 DO - 10.1016/j.ejr.2012.09.001 SP - 21 EP - 27 N1 - et al. ER -