Increased salivary gland tissue expression of Fas, Fas ligand, cytotoxic T lymphocyte-associated antigen 4, and programmed cell death 1 in primary Sjögren's syndrome

1. Bolstad, A.I.
2. Eiken, H.G.
3. Rosenlund, B.
4. Alarcón-Riquelme, M.E.
5. Jonsson, R.