CONFLICTS OF INTEREST STATEMENT
This work was supported by the Corno grant of the Dutch Cystic Fibrosis
Foundation. The funding source had no role in study design; in the
collection, analysis, and interpretation of data; in the writing of the
report; or in the decision to submit the article for publication.
Marieke Verkleij reports grants from the Dutch Cystic Fibrosis
Foundation and consulting and speaker’s fees from Vertex
Pharmaceuticals.
Berber Vlieg-Boerstra reports research funding from Nutricia, consulting
or speaker’s fees from ViniMini, Nestlé and Nutricia.