John Hunter Hospital, Newcastle, New South Wales, Australia
CF Zentrum Köln, Universitätskrankenhaus Köln, Cologne, Germany
Pneumologische Praxis Pasing, Münich, Münich-Pasing, Germany
Charité Universitätsmedizin Berlin, Berlin, Germany
Rigshospitalet, Copenhagen, Denmark
CF Zentrum Köln, Universitätskrankenhaus Köln, Cologne, Germany
Medizinische Klinik I, Pneumologie, Uniklinik, Frankfurt, Germany
Beaumont Hospital, Dublin, Ireland
University College Hospital Galway, Galway, Ireland
Liverpool Heart & Chest Hospital, Liverpool, United Kingdom