Is there a greater benefit for eras after a radical cystectomy for patients over 70 years or polypathological?. (June 2017) - Terrier, Manon; Baldini, Arnaud; Fassi-Fehri, Hakim; Colombel, Marc; Codas, Ricardo; Crouzet, Sebastien; Bayle, Frederique; Paganelli, Lena; Badet, Lionel