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Forest plot of studies comparing TGP-IS group and the IS group, examining the effect on primary Sjögren's syndrome (including Schirmer test, saliva flow test, ESR, and CRP). (a) Schirmer test. (b) Saliva flow test. (c) ESR. (d) CRP. Note. TGP-IS group: the group treated with TGP in combination with an immunosuppressant. IS group: the group which received an immunosuppressant alone.
