Negotiated Procedure Without Prior Publication Of The Announcement Pursuant To Art. 76 Paragraph 2 Letter B) Of Legislative Decree N. 36/2023 And S.M.I. For The Supply, In Agreement With A Single Operator, Of The Medicinal Specialty Nvite To The Negotiated Procedure Without Prior Publication Of Tender, Pursuant To Art. 76, Paragraph 4, Of Legislative Decree No. 36/2023, For The Transitional Assignment Of The Supply Of Diagnostic Reagents For The "Serum Area" Systems