Reply from Authors re: Jens. J. Rassweiler, Marcel Fiedler-Hruza. The Learning Curve for Robot-assisted Partial Nephrectomy: There is Much Beyond a Trifecta. Eur Urol. In press. https://doi.org/10.1016/j.eururo.2018.10.022: The Clinical Implications of Surgical Learning Curve Analysis: Can We Optimize Patient Outcomes Using Structured Training Programs?