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Article History

Received: 5 April 2018

Accepted: 30 November 2018

First Online: 18 December 2018

Ethics approval and consent to participate

: The study followed the tenets of the Declaration of Helsinki and was approved by the local Ethical Committee on human experimentation of the University Hospital of Patras. A written informed consent was obtained from each patient, before the surgical procedure, for his participation in this study.

: Not Applicable.

: The authors declare that they have no competing interests.

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