Corrigendum. Definition of a clinical strategy to enhance the efficacy, efficiency and safety of egg donation cycles with imported vitrified oocytes. Issue 8 (3rd June 2020) - Rienzi, Laura; Cimadomo, Danilo; Maggiulli, Roberta; Vaiarelli, Alberto; Dusi, Ludovica; Buffo, Laura; Amendola, Maria Giulia; Colamaria, Silvia; Giuliani, Maddalena; Bruno, Giulietta; Stoppa, Marta; Ubaldi, Filippo Maria