Reply to Diana A. Castillo-Jimenez and Herney A. García-Perdomo's Letter to the Editor re: Niranjan J. Sathianathen, Badrinath R. Konety, Fernando Alarid-Escudero, Nathan Lawrentschuk, Damien M. Bolton, Karen M. Kuntz. Cost-effectiveness Analysis of Active Surveillance Strategies for Men with Low-risk Prostate Cancer. Eur Urol. In press. https://doi.org/10.1016/j.eururo.2018.10.055. Standardized Reporting for Economic Analyses Should be Mandatory.