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Article History

Received: 14 March 2018

Accepted: 13 December 2018

First Online: 7 January 2019

Ethics approval and consent to participate

: Data was collected prospectively as a quality improvement project within our center’s cystic fibrosis clinic. The University of Washington’s Human Subjects Division approved retrospective data review for the study without patient consent.

: The University of Washington’s Human Subjects Division approved publication without patient consent.

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.