Open Telematic Procedure For The Awarding Of The Catering Service With Reduced Environmental Impact For Healthcare Companies Of The Veneto Region No. 4 Eastern Veneto, 5 Polesana, 6 Euganea, 7 Pedemontana, 8 Berica And 9 Scaligera, For The University Hospital Of Padua And For The Irccs Iov 2Nd Edition