CFTR and cystic fibrosis: Full manuscripts or conference abstracts of observational studies, case series, and case reports from 2012 to 2020, participants that had a diagnosis of CF that received at least one dose of a CFTR modulator (i.e., IVA, LUM/IVA, TEZ/IVA, or ELX/TEZ/IVA) in the real-world setting, and reported adverse events that occurred while participants were receiving the CFTR modulator.