European Tender Pursuant To Articles. 25, 70, 71, 108 C. 2 And 3 Of The Legislative Decree. N. 36/2023 Through The Electronic E-Procurement Procedure, In Union With The Health, Hospital And University Companies Of The Eastern Basin Of The Sicilian Region, Aimed At The Conclusion Of A Framework Agreement Pursuant To Art. 59 C. 4 Lett. A) And C. 3 Of The Legislative Decree. N. 36/2023 For The Four-Year Supply Of Prote Material