Issue 2 - ¿Update on adverse respiratory effects of indoor air pollution¿ Part 1): Indoor air pollution and respiratory diseases: A general update and a Portuguese perspective J.C. Rufo; I. Annesi-Maesano; P. Carreiro-Martins; A. Moreira; A.C. Sousa; M.R. Pastorinho; N. Neuparth; L. Taborda-Barata;

Issue 1 - ¿Update on adverse respiratory effects of outdoor air pollution¿ Part 2): Outdoor air pollution and respiratory diseases: Perspectives from Angola, Brazil, Canada, Iran, Mozambique and Portugal A.C. Sousa; M.R. Pastorinho; M.R. Masjedi; M. Urrutia-Pereira; M. Arrais; E. Nunes; T. To; A.J. Ferreira; C. Robalo-Cordeiro; C. Borrego; J.P. Teixeira; L. Taborda-Barata;

Diagnosis of COVID-19 by sound-based analysis of vocal recordings P. Carreiro-Martins; P. Paixão; I. Caires; A. Rodrigues; P. Matias; H. Gamboa; A. Carreiro; F. Soares; P. Gomez; J. Sousa; N. Neuparth;