Funding for this research was provided by:
National Institute for Health Research
Received: 16 October 2018
Revised: 1 May 2019
Accepted: 22 May 2019
First Online: 2 July 2019
Compliance with ethical standards
: The scientific guarantor of this publication is Christina Messiou.
: 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.
: • Prospective• Diagnostic or prognostic study• Performed at one institution