Narducci, Alessandro
Yasuyuki, Kaku
Onken, Julia
Blecharz, Kinga
Vajkoczy, Peter http://orcid.org/0000-0003-4350-392X
Article History
Received: 15 November 2018
Accepted: 12 January 2019
First Online: 24 January 2019
Compliance with ethical standards
: The study was approved by the local Ethics Committee (EA4/121/17). The paper is reported following the STROBE statement. All patients signed an informed consent form prior to the surgical procedure. A specific consent form was not required for study enrollment, because of its retrospective nature.
: The authors declare that they have no conflict of interest.