Time to get serious about the detection and monitoring of early lung disease in cystic fibrosis http://orcid.org/0000-0003-3587-4763Katie J Bayfield1, Tonia A Douglas2,3, Tim Rosenow4,5,6, http://orcid.org/0000-0003-3506-1199Jane C Davies7,8, Stuart J Elborn9, Marcus Mall10,11,12, Anthony Paproki13, Felix Ratjen14,15, http://orcid.org/0000-0001-6305-2201Peter D Sly16, http://orcid.org/0000-0001-5494-5438Alan R Smyth17, Stephen Stick4,5,18, Claire E Wainwright2,3,...