Prevalence of Sj?gren's syndrome associated with rheumatoid arthritis in the USA: an observational study from the Corrona registry.
Harrold LR, Shan Y, Rebello S, Kramer N, Connolly SE, Alemao E, Kelly S, Kremer JM, Rosenstein ED. Prevalence of Sj?gren's syndrome associated with rheumatoid arthritis in the USA: an observational study from the Corrona registry. Clin Rheumatol. 2020 Jun; 39(6):1899-1905.