Article History
Received: 4 April 2018
Revised: 24 May 2018
Accepted: 31 May 2018
First Online: 19 June 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Professor Stephen Cheng (Head of Department).
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: Written informed consent was obtained from all subjects (patients) in this study.
: Institutional Review Board approval was obtained.
: The 6- and 12-month outcomes of 22 patients were previously reported in a small prospective study [CitationRef removed].
: • Retrospective• Observational• Single institution