De Vlieger, J.
Dejaegher, J.
Van Calenbergh, F.
Article History
Received: 21 May 2018
Accepted: 25 January 2019
First Online: 8 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest. There was no funding for this paper.
: All authors listed as co-authors have authorized to submit this manuscript via e-mail to the corresponding author. The work is an original report and we did not include data from other studies. It has not been published elsewhere; it is not under consideration in any other journal. All the tables are the authors’ work and are based on our own data.
: This is a retrospective study and, therefore, the ethical board of our institution did not require an informed consent of the patients to perform this study.