Prevalence and Impact of Asthma and Allergy on Daily Life, Health Outcomes and Use of Healthcare Services in Children: A Population-Based Study Luis González-de Paz; Laura Valdesoiro-Navarrete; Josep Roma; Esther Blat-Guimerà; Jaume Benavent-Areu; Joan Bartra; Antoni Sisó-Almirall;

Identification of Asthma Phenotypes in the Spanish MEGA Cohort Study Using Cluster Analysis Marcos Matabuena; Francisco Javier Salgado; Juan José Nieto-Fontarigo; María J. Álvarez-Puebla; Ebymar Arismendi; Pilar Barranco; Irina Bobolea; María L. Caballero; José Antonio Cañas; Blanca Cárdaba; María Jesus Cruz; Elena Curto; Javier Domínguez-Ortega; Juan Alberto Luna; Carlos Martínez-Rivera; Joaquim Mullol; Xavier Muñoz; Javier Rodriguez-Garcia; José María Olaguibel; César Picado; Vicente Plaza; Santiago Quirce; Manuel J. Rial; Christian Romero-Mesones; Beatriz Sastre; Lorena Soto-Retes; Antonio Valero; Marcela Valverde-Monge; Victoria Del Pozo; Joaquín Sastre; Francisco Javier González-Barcala;

Short and Long-Term Impact of COVID-19 Infection on Previous Respiratory Diseases Eusebi Chiner-Vives; Rosa Cordovilla-Pérez; David de la Rosa-Carrillo; Marta García-Clemente; José Luis Izquierdo-Alonso; Remedios Otero-Candelera; Luis Pérez-de Llano; Jacobo Sellares-Torres; José Ignacio de Granda-Orive;