ELECTRONIC NEGOTIATED PROCEDURE ON THE ELECTRONIC MARKETPLACE FOR PUBLIC ADMINISTRATION (MEPA) VIA OPEN REQUEST FOR QUOTATION (RDO) FOR THE AWARD OF A CONTRACT FOR THE SUPPLY OF FULL-ENDOSCOPIC SPINAL SURGERY PROCEDURES—INCLUDING RADIOFREQUENCY GENERATOR SERVICE—REQUIRED FOR THE OPERATING THEATRE OF THE U.O.C. (COMPLEX OPERATIONAL UNIT) OF NEUROSURGERY AT THE SAN CARLO HOSPITAL IN POTENZA.