Estimating the minimum sample size for interventional and observational studies using the Lung Clearance Index as an endpoint
Bowerman, C., Ratjen, F., & Stanojevic, S. (2023). Estimating the minimum sample size for interventional and observational studies using the lung clearance index as an endpoint. Journal of Cystic Fibrosis, 22(2), 356–362. https://doi.org/10.1016/j.jcf.2022.11.003.