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Article History

Received: 12 April 2018

Accepted: 8 November 2018

First Online: 5 December 2018

Ethics approval and consent to participate

: Ethical requirements were fulfilled, accordingly to “Decreto Legge 196”, article 4 (2003). Due to the retrospective data analysis and the de-identification of sensible data, no consent was required and no consent was required for data utilization. Ethical Committee and the hospital data protection office approved data utilization and publication.

: Not applicable.

: The authors declare that they have no competing interests.

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