Text and Data Mining valid from 2018-08-17
Received: 2 May 2018
Revised: 9 July 2018
Accepted: 24 July 2018
First Online: 17 August 2018
Compliance with ethical standards
: The scientific guarantor of this publication is Dr Mazen Sudah MD, PhD.
: 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.
: One of the authors has significant statistical expertise.No complex statistical methods were necessary for this paper.
: Written informed consent was obtained from all patients in this study.
: Institutional review board approval was obtained.
: • prospective• case-control, diagnostic study• performed at one institution