Global Initiative for Asthma Strategy 2021. Executive Summary and Rationale for Key Changes Helen K. Reddel; Leonard B. Bacharier; Eric D. Bateman; Christopher E. Brightling; Guy G. Brusselle; Roland Buhl; Alvaro A. Cruz; Liesbeth Duijts; Jeffrey M. Drazen; J. Mark FitzGerald; Louise J. Fleming; Hiromasa Inoue; Fanny W. Ko; Jerry A. Krishnan; Mark L. Levy; Jiangtao Lin; Kevin Mortimer; Paulo M. Pitrez; Aziz Sheikh; Arzu A. Yorgancioglu; Louis-Philippe Boulet;

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;

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;