Footnotes

• Funding None declared.

• Competing interests The author is a consultant to Chiesi Farmaceutici, Parma, Italy, a company that makes budesonide but it did not contribute in any way to this article. The author is also joint editor-in-chief of Neonatology and Chair of the Trial Steering Committee of Minidex.

• Patient consent Not required.

• Provenance and peer review Commissioned; internally peer reviewed.