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Article History

Received: 4 October 2017

Accepted: 29 October 2018

First Online: 12 November 2018

Ethics approval and consent to participate

: This study was approved by the Institutional Review Boards of the Mater Misericordiae University Hospital, Mater Private Hospital and Royal Victoria Eye & Ear Hospital, Dublin, Ireland. All patients (or their legal guardians in the case of children) whose data is described in this manuscript signed informed consent before taking part in this study. This study is in accordance with the Declaration of Helsinki.

: All patients (or their legal guardians in the case of children) whose data is described in this manuscript signed informed consent giving permission for their data to be published anonymously.

: None of the authors have any competing interests as laid out in BioMed Central’s guidance document.

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