Received: 8 February 2019
Accepted: 28 March 2019
First Online: 16 April 2019
Ethics approval and consent to participate
: Data were collected as part of routine postoperative follow-up, and all patients provided informed consent for the use of their data for research purposes. The institutional review board approval was therefore not required for this study.
: Not applicable.
: The authors state that they have no competing interests. The abstract has been presented at the 5th WSES congress by DT. No funding was given to the authors for the presentation.
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