Reply to Yunjin Bai, Yubo Yang, Yin Tang's Letter to the Editor, re: Andrea Necchi, Marco Bandini, Giuseppina Calareso, et al. Multiparametric Magnetic Resonance Imaging as a Noninvasive Assessment of Tumor Response to Neoadjuvant Pembrolizumab in Muscle-invasive Bladder Cancer: Preliminary Findings from the PURE-01, Study. Eur Urol 2020;77:636–43