Updates are available Correction dated 2018-11-07

Article History

Received: 21 March 2018

Accepted: 1 August 2018

First Online: 20 August 2018

Change Date: 7 November 2018

Change Type: Correction

Change Details: Following publication of the original article [1], the author flagged aspects of the article that affected readability of some of the article’s scientific content.

Ethics approval and consent to participate

: All studies were approved by the local ethics committees (leading ethics committee: University Luebeck, Ethics Committee, Ratzeburger Allee 160, 23,538-Luebeck, Germany; reference number: Az 12–215) and are registered at (paediatric arm: NCT02496468 (first posted: July 14th 2015); adult arm: NCT02419274 (first posted: April 17th 2015)). All adult patients provided written informed consent prior to inclusion. For children, informed consent was given by either parent or caretaker if aged younger than 8 years, and additionally by the child if aged 8 years or older.

: Not applicable.

: The author’s declare that they have no competing interests.

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