Article History
Received: 28 December 2017
Accepted: 9 January 2018
First Online: 15 February 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Guilherme Macedo, PhD., Department of Gastroenterology, Centro Hospitalar São João, Porto, Portugal.
: 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.
: • performed at one institution