Trends in child and adolescent mental health in Catalonia in the context of the COVID-19 pandemic during the 2020¿2021 school year Elena Alcover Bloch; Anna Gatell Carbó; Josep Vicent Balaguer Martínez; Tomás Pérez Porcuna; Olga Salvadó Juncosa; Emilio Fortea Gimeno; Patricia Álvarez Garcia;

Impact of screen and social media use on mental health Lefa S. Eddy Ives; Abigail Huertas Patón; María Azul Forti Buratti; Julio Álvarez Pitti; María Angustias Salmerón-Ruiz; Pedro Javier Rodríguez Hernández; Matias Real-López;

Effectiveness of liraglutide in the treatment of adolescent obesity Mónica Ruiz Pons; Marina Gutiérrez Vilar; Celia García Zurita; Manuel Enrique Fuentes Ferrer; Alejandra Pérez Rodríguez; Cristina Rosado Alonso;