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Article History

Received: 6 February 2019

Accepted: 8 April 2019

First Online: 29 May 2019

Ethics approval and consent to participate

: This research has been performed in accordance with the declaration of Helsinki. The study was approved by the Institutional Review Board of the University Medical School of Bari; all patients gave a written consent to the use of data for research.

: Patient consent for research use of data was obtained for each case presented. All identification data of the patients were removed from medical records prior to data collection. De-identified data were used, and it was not possible to trace any of the data to the actual individual. Only information required for coherent description of cases was extracted. Data in electronic format were accessible to authorized personnel only. No intervention other than recording, counting and analysing of data took place.

: The authors declare that they have no competing interests.

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