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Isolation and characterization of rheumatoid arthritis synovial fibroblasts from primary culture — primary culture cells markedly differ from fourth-passage cells

Thomas Zimmermann, Elke Kunisch, Robert Pfeiffer, Astrid Hirth, Hans-Detlev Stahl, Ulrich Sack, Anke Laube, Eckehard Liesaus, Andreas Roth, Ernesta Palombo-Kinne, Frank Emmrich and Raimund W Kinne

Arthritis Res 2001, 3:72-76  doi:10.1186/ar142

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