Expression of Concern: Ischemic Stroke and TIA Related to Vasculitis Secondary to Primary Sjögren's Syndrome

This is an expression of concern (editorial notice) regarding a previously published case series linking ischemic stroke and transient ischemic attack to large-vessel vasculitis complications of primary Sjögren's syndrome. The concern document does not appear to endorse or dispute the clinical relationship itself, but rather raises methodological or publication integrity questions about the original article.