Comparison of organoid swelling and in vivo biomarkers of CFTR function to determine effects of lumacaftor-ivacaftor in patients with cystic fibrosis homozygous for the F508del mutation - Gräber, Simon Y.; van Mourik, Peter; Vonk, Annelotte M.; Kruisselbrink, Evelien; Hirtz, Stephanie; van der Ent, Cornelis K.; Mall, Marcus A.; Beekman, Jeffrey M. (American journal of respiratory and critical care medicine, 2020)