Market Survey Open To All Interested Economic Operators And Contextual Request For Quotes For The Supply Of 2 Cryobiological Containers For Storage And Preservation In Liquid Nitrogen/Nitrogen Vapors (196°/150°) Of Human Tissues And Biological Material, Required To The S.S.D Tissue Banks And Bioconservatory And To The Ssd Maternal, Child And Traumatological Transfusion Medicine, Of The Citta Della Salute E Della Scienza Di Turin University Hospital