“…Common CF mutations were found in 14 of the 100 patients with IP (14%) and globally, one CFTR mutation or variant was found in 50% of the patients with IP. This is the highest rate published in the literature (7–43%) [14,16,45,53,54,55,56,57]. This may be explained in part by a more thorough and exhaustive search for mutations using both automated and direct sequencing methods.…”