The European respiratory journal, Volume 61, Issue 3, 30 5 2023, Pages 2201949 Characteristics of individuals with alpha-1 antitrypsin deficiency from Northern and Southern European countries: EARCO international registry. Miravitlles M, Turner AM, Torres-Duran M, Tanash H, Rodríguez-García C, López-Campos JL, Chlumsky J, Guimaraes C, Rodríguez-Hermosa JL, Corsico A, Martinez-González C, Hernández-Pérez JM, Bustamante A, Parr DG, Casas-Maldonado F, Hecimovic A, Janssens W, Lara B, Barrecheguren M, González C, Stolk J, Esquinas C, Clarenbach CF, EARCO study investigators