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;