LAG3 and autoimmune disease: When comparing specific diseases among Mimics, the levels of sPD-1, sBTLA, sCTLA-4/sCD152, sCD27, sCD28, sTIM-3, sGITR, sCD137, sIDO, sCD80, sLAG-3, and sPD-L2 were found to be comparable to those in some autoimmune diseases, such as CIDP and GBS (Figure S3A–L).