Safety and benefits of the use of an uptitration protocol in patients with heart failure and reduced ejection fraction followed in an heart failure unit - Giraldez, A; Ruiz, L; Gamaza, S; Zafra, F; Diaz, E; Gutierrez, A; Alba, M; Gonzalez, E; Del Rio, A; Oneto, J (EUROPEAN JOURNAL OF HEART FAILURE, 2016)