Long-term Follow-up and Factors Associated with Active Surveillance Failure for Patients with Non–muscle-invasive Bladder Cancer: The Bladder Cancer Italian Active Surveillance (BIAS) Experience

Roberto Contieri, Marco Paciotti, Giovanni Lughezzani, Nicolò Maria Buffi, Nicola Frego, Pietro Diana, Vittorio Fasulo, Alberto Saita, Paolo Casale, Massimo Lazzeri, Giorgio Guazzoni, Rodolfo Hurle