Issue 2 - “Update on adverse respiratory effects of indoor air pollution”. Part 2): Indoor air pollution and respiratory diseases: Perspectives from Italy and some other GARD countries G. Sarno, I. Stanisci, S. Maio, S. Williams, E.M. Khoo, S.G. Diaz, E.V. Ponte, L.T.T. Lan, T. Soronbaev, D. Behera, S. Tagliaferro, S. Baldacci, G. Viegi

Issue 1 - “Update on adverse respiratory effects of outdoor air pollution”. Part 1): Outdoor air pollution and respiratory diseases: A general update and an Italian perspective S. De Matteis, F. Forastiere, S. Baldacci, S. Maio, S. Tagliaferro, S. Fasola, G. Cilluffo, S. La Grutta, G. Viegi

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