Real-world effectiveness of airway clearance techniques in children with cystic fibrosis.

"Conflicts of interest: G. Davies reports personal UKRI fellowship, UKRI and NIHR grants, speaker honoraria from Chiesi Ltd, and speaker honoraria, consulting fees and participation on a board from Vertex Pharmaceuticals, outside the submitted work. S. Stanojevic reports consulting fees from Chiesi Ltd, speaker fees from Vyaire Medical, participation on a board for Ndd technologies, and leadership role from the European Respiratory Society and the American Thoracic Society, outside the submitted work. The remaining authors have no potential competing interests to disclose."

"Author contributions: Funding acquisition and supervision: E. Main and S. Stanojevic. Conceptualisation: E. Main, S. Stanojevic, N. Filipow, E. Raywood, H. Douglas, H. Shannon and G. Davies. Project administration: E. Raywood, H. Douglas, N. Murray and R. O'Connor. Data curation: N. Filipow, G. Tanriver, K. Kapoor, S. Stanojevic, E. Raywood, R. O'Connor and N. Murray. Formal analysis: N. Filipow, G. Tanriver, K. Kapoor and S. Stanojevic. Writing the original manuscript draft: N. Filipow, S. Stanojevic and E. Main. Review and editing of the manuscript: N. Filipow, E. Raywood, S. Stanojevic, H. Shannon, G. Davies and E. Main. Support statement: Project Fizzyo was supported by the UCL Rosetrees Stoneygate prize (M712), a Cystic Fibrosis Trust Clinical Excellence and Innovation Award (CEA010), a UCL Partners award and the HEFCE Higher Education Innovation Fund (KEI2017-01-04). N. Filipow was funded by a UCL, GOSH and Toronto SickKids studentship. H. Douglas was funded by the CF Trust Youth Activity Unlimited SRC and an NIHR GOSH BRC internship. G. Davies holds a UKRI Future Leaders Fellowship (MR/T041285/1). All work at UCL GOSICH is supported by the NIHR GOSH BRC. The views expressed are those of the authors and not necessarily those of the NHS, NIHR or Department of Health. The study is sponsored by UCL. The funders and sponsor played no role in the design or conduct of the study. Funding information for this article has been deposited with the Crossref Funder Registry."