Response to Letters Regarding Article, "Early Detection of Anthracycline Cardiotoxicity and Improvement With Heart Failure Therapy". Issue 4 (26th January 2016) - Cardinale, Daniela; Colombo, Alessandro; Bacchiani, Giulia; Tedeschi, Ines; Meroni, Carlo A.; Civelli, Maurizio; Lamantia, Giuseppina; Colombo, Nicola; Cipolla, Carlo M.; Veglia, Fabrizio; Fiorentini, Cesare; Curigliano, Giuseppe