Cheryl Stewart BSc, PhD and Michael S. Pepper MD, PhD

Genet Med advance online publication, December 10, 2015; doi:10.1038/gim.2015.157

In the originally published version of this article, an extraneous word was introduced into the first sentence of the Introduction. The correct sentence is “Our awareness of cystic fibrosis (CF) significantly predates our ability to comprehend the molecular factors that underpin its cause and affect prognosis.” The publisher regrets the error.