Date	Event	Description
15 February 2016	New search has been performed	A search of the Cochrane Cystic Fibrosis and Genetic Disorders Review Group did not identify any new references potentially eligible for inclusion in this review.
15 February 2016	New citation required but conclusions have not changed	Since no new studies have been included in this updated review, our conclusions remain the same.
10 February 2014	New search has been performed	A search of the Cystic Fibrosis & Genetic Disorders Group's Cystic Fibrosis Trials Register did not identify any potentially eligible studies for inclusion in this review.
10 February 2014	New citation required but conclusions have not changed	No new studies were included in this update of the review, therefore our conclusions remain the same. Jai Shanthini Singaram has stepped down from the author team for this update.
26 October 2011	New search has been performed	A search of the Group's Cystic Fibrosis Trials Register did not identify any new references potentially eligible for inclusion in the update of this review.
26 April 2010	Amended	Contact details updated.