1. From Manchester University NHS Foundation Trust, Manchester, United Kingdom (P.J.B.); Charité–Universitätsmedizin Berlin, the Berlin Institute of Health, and the German Center for Lung Research, Berlin (M.A.M.), and the Division of Cystic Fibrosis, Department of Pulmonary Medicine, University Medicine Essen–Ruhrlandklinik, University of Duisburg–Essen, Essen (S.S.) — all in Germany; Vall d’Hebron Barcelona Hospital Campus, Barcelona (A.A.); Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico and...