... conception of the study and the acquisition, analysis, and interpretation of data and partic-ipated in drafting the manuscript. NL participated in the analy-sis and interpretation of data. EB and ... anti-bodies in patients with mixed connective tissue disease (MCTD) (9%), systemic lupus erythematosus (14%), systemic sclerosis (13%), polymyositis/dermatomyositis (14%), and SSTable 3Correlations with ... as fatigue, myalgia,arthralgia, an intermittent non-erosive polyarthropathy affect-ing mainly the small joints, and usually mild synovitis are com-mon in patients with pSS and may mimic RA,...