Primer sjögren sendromunda (pSjS) myxovirus resistance 1(mx1) proteinin hastalık aktivasyonu belirlenmesindeki yerinin serum ve tükürük örneklerinde değerlendirilmesi Evaluation of correlation between serum and saliva samples of myxovirus resistance 1 (mx1) in patients with primary sjögren's syndrome (pSjS) and disease activity scores (ESSDAI)