Aggregate Supply Of Single-Use Instruments And Accessories For Surgical Procedures: Arthroscopy, Trauma And Thoracic Surgery For The Centers Of The Catalan Health Institute And The Centers Affiliated To This Procedure: Management Of Health Services, Consorci Sanitari Alt Penedès-Garraf, Salut Catalunya Central - Hospital De Berga And Hospital De Cerdanya - Aect Agrupació Europea De Cooperación Territorial