1 Board of Directors of the Alpha1-Antitrypsin Deficiency Spanish Registry, Lung Foundation Breathe, Spanish Society of Pneumology (SEPAR), Barcelona, Spain. ignablanco@yahoo.com.
2 Faculté de Medecine, Université de Strasbourg et Clinique Dermatologique, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
3 Respiratory Medicine Department, Royal Exeter and Devon Hospital, Exeter, U.K.
4 Department of Respiratory Medicine, Hannover Medical School, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hanover, Germany.