to explore the immunopathogenetic mechanisms of hypergammaglobulinemia in ankylosing spondylitis ( as ) , the functions of b cell , helper t ( okt4 ) cell and suppressor t ( okt8 ) cell were examined , by using the co-cultivation technique for in vitro immunoglobulin biosynthesis , in 7 patients with active as , 7 with inactive as and 14 normal controls .
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the functions
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cell