Harboe E, Tjensvoll AB, Vefring HK, Gøransson LG, Kvaløy JT, Omdal R. (2009). Fatigue in primary Sjögren’s syndrome—a link to sickness behaviour in animals? Brain Behav Immun.23(8):1104-8. doi:10.1016/j.bbi.2009.06.151PMID 19560535
Voulgarelis M., Skopouli F.N. Clinical, immunologic, and molecular factors predicting lymphoma development in Sjogren's syndrome patients(անգլ.) // Clin Rev Allergy Immunol : journal. — 2007. — Т. 32. — № 3. — С. 265—274. — doi:10.1007/s12016-007-8001-x — PMID 17992593.
Harboe E, Tjensvoll AB, Vefring HK, Gøransson LG, Kvaløy JT, Omdal R. (2009). Fatigue in primary Sjögren’s syndrome—a link to sickness behaviour in animals? Brain Behav Immun.23(8):1104-8. doi:10.1016/j.bbi.2009.06.151PMID 19560535
Voulgarelis M., Skopouli F.N. Clinical, immunologic, and molecular factors predicting lymphoma development in Sjogren's syndrome patients(անգլ.) // Clin Rev Allergy Immunol : journal. — 2007. — Т. 32. — № 3. — С. 265—274. — doi:10.1007/s12016-007-8001-x — PMID 17992593.