Pathological response and survival outcomes after neoadjuvant chemotherapy with radical cystectomy in octogenarians for muscle-invasive bladder cancer: an observational database st... oleh Arjun Pon Avudaiappan, Pushan Prabhakar, Mayer Simcha Sandman, Muni Rubens, Rohan Garje, Ahmed Eldefrawy, Murugesan Manoharan