Variability of Primary Sjögren's Syndrome Is Driven by Interferon-α and Interferon-α Blood Levels Are Associated With the Class II HLA-DQ Locus. - Trutschel D; Bost P; Mariette X; Bondet V; Llibre A; Posseme C; Charbit B; Thorball CW; Jonsson R; Lessard CJ; Felten R; Ng WF; et al. (Arthritis & rheumatology (Hoboken, N.J.), 2022)