Evaluation of liver function tests in the paediatric patient Víctor Fernández Ventureira; Ignacio Ros Arnal; Gerardo Rodríguez Martínez; Beatriz García Rodríguez; Ruth García Romero; Eduardo Ubalde Sainz;

COVID-19: Critical appraisal of the evidence Paz González Rodríguez; Begoña Pérez-Moneo Agapito; María Salomé Albi Rodríguez; Pilar Aizpurua Galdeano; María Aparicio Rodrigo; María Mercedes Fernández Rodríguez; María Jesús Esparza Olcina; Carlos Ochoa Sangrador;

Are the ESPGHAN criteria valid with the chemioluminiscence method? Analysis of potential diagnostic errors Rocío Garcés Cubel; Ruth García Romero; Ignacio Ros Arnal; Yolanda González Irazabal; Guillermo Hernández de Abajo;