Reply to Feng Qi, Zicheng Xu, and Qing Zou’s Letter to the Editor re: Andrea Loehr, Arif Hussain, Akash Patnaik, et al. Emergence of BRCA Reversion Mutations in Patients with Metastatic Castration-resistant Prostate Cancer After Treatment with Rucaparib. Eur Urol. In press. https://doi.org/10.1016/j.eururo.2022.09.010