Registration of a research project - clinical trial: which, when, where, and how Anna Nonell; Xavier Serra Aracil;

Non-inferiority clinical trial. Features and practical considerations Xavier Serra-Aracil; Marc Fradera;

Protocolization of multicenter clinical studies in the digital era. Is useful data centralization by a data-manager? Antonio Ríos; José Antonio Puñal-Rodríguez; Pablo Moreno; Enrique Mercader-Cidoncha; Eduardo Ferrero-Herrero; Manuel Durán; Guadalupe Ruiz-Merino; José Ruiz-Pardo; José Manuel Rodríguez; Pedro Ramón Gutiérrez;