Impact of the COVID-19 pandemic in mortality due to respiratory diseases: A comparative analysis of 2021 and 2020 vs 2019 in Spain Joan B. Soriano; Adrián Peláez; Esteve Fernández; Julio Ancochea;

Incidence and mortality of osteomielitis in Spain according to the basic minimum data set Pilar López del Pino; Antonio Guerrero Espejo;

Vaccine effectiveness in patients admitted for influenza during the 2023¿2024 season Christian Ruzafa Martinez; Salvador Valero; Eva García Villalba; Cristina Tomás; Ángeles Muñoz; Antonia Alcaraz; Rodrigo Martínez-Rodríguez; María Dolores Hernández; María Isabel Martínez; María Rosario Vicente; Elena Guijarro Westermeyer; Román González Hipólito; Enrique Bernal;