Negotiated Procedure Without Publication Of A Notice, Pursuant To Art. 76, Paragraph 2, Letter B), Point 2, Of Legislative Decree 36/2023, Via The It System For Telematic Purchasing Procedures Of So.Re.Sa "Siaps Healthcare Public Procurement Information System", For The Awarding Of The Two-Year Supply Of The Percutaneous High-Frequency Electrical Neurostimulation System For The Management Of Chronic And Acute Pain, Combined With Minimally Invasive Percutaneous Electrodes That Deliver Multiple Signals Above 3500 Hz To Be Allocated To Pp.Oo. Of Pagani, Of Vallo Della Lucania, Of Sapri, Of Eboli, Of Oliveto Citra Of The Asl Salerno.