Introduction Sjögren's disease is a chronic, systemic autoimmune disease that typically originates in exocrine glands but can severely affect the function of almost any organ.1 The prevalence of Sjögren's disease without an associated autoimmune condition (ie, formerly referred to as primary) is 43–60 per 100 000 individuals and is nine to ten times more common in women than in men.2 Patients with Sjögren's disease commonly experience symptoms of dryness, disabling pain, arthralgia, and...