1 Pneumology Unit, IRCCS San Matteo Hospital Foundation and University of Pavia, Pavia, Italy. Electronic address: i.campo@smatteo.pv.it.
2 Pneumology Unit, IRCCS San Matteo Hospital Foundation and University of Pavia, Pavia, Italy.
3 Kinderklinik und Kinderpoliklinik im Dr. von Haunerschen Kinderspital, University of Munich, Munich, Germany.
4 Translational Pulmonary Science Center, Cincinnati Children's Hospital, Cincinnati, Ohio.
5 Interstitial and Rare Lung Disease Unit, Ruhrlandklinik University Hospital, University of Duisburg-Essen, Essen, Germany.
6 Centre of Interstitial Lung Diseases, St. Antonius Hospital Nieuwegein, Nieuwegein, The Netherlands.
7 Niigata University Medical and Dental School, Niigata, Japan.
8 National Reference Centre for Rare Pulmonary Disease, Hopital Louis Pradel, Lyon, France.
9 Tokyo Medical University Hachioji Medical Center, Tokyo, Japan.
10 Department of Diffuse Lung Diseases and Respiratory Failure, Clinical Research Centre, National Hospital Organization Kinki-Chuo Chest Medical Centre, Osaka, Japan.
11 Department of Anesthesiology and Intensive Care, IRCCS San Matteo Hospital Foundation, University of Pavia, Pavia, Italy.
12 Clinical Epidemiology and Biometric Unit, IRCCS San Matteo Hospital Foundation, Pavia, Italy.