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Increase in IL-21 producing T-cells in patients with systemic lupus erythematosus

Sebastian Dolff*, Wayel H Abdulahad, Johanna Westra, Berber Doornbos-van der Meer, Pieter C Limburg, Cees GM Kallenberg and Marc Bijl

Arthritis Research & Therapy 2011, 13:R157  doi:10.1186/ar3474

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