IL17A and peeling skin syndrome: IL-17, IL-23, IL-17R, and IL-23R were detected in glandular ducts (d), acini (a), blood vessels (bl v), intraglandular interstitium (i), infiltrating inflammatory cells (ly) of minor salivary glands (MSGs) of patients with pSS (n = 25), probable preclinical pSS (n = 25), and nonautoimmune sicca syndrome (n = 25).