Open Procedure, Pursuant To Art. 71 Of Legislative Decree 36/2023, To Be Completed Through The Use Of The Sardegnacat Telema-Fitty Platform, Aimed At The Five-Year Supply, Under The Service Of Automated Systems For The Diagnostic Of Autoimmune Diseases With Ifa, Clia Or Feia Methods, Immunoblot And Elisa Divided Into Three Lots, For The Needs Of The S.C. Single Clinical Analysis Laboratory Chi