Fotios Barkas, Moses Elisaf, Eleftherios Klouras, Theodora Dimitriou, Evangelos Liberopoulos, Department of Internal Medicine, School of Medicine, University of Ioannina, 45110 Ioannina, Greece
Nikolaos Tentolouris, Evangelos Liberopoulos, First Department of Propaedeutic and Internal Medicine, Medical School, National and Kapodistrian University of Athens, Laiko General Hospital, 10559 Athens, Greece
Author contributions: Barkas F designed and performed the research and wrote the paper; Klouras E and Dimitriou T contributed to the analysis; Tentolouris N provided clinical advice; Elisaf M and Liberopoulos E supervised the report.
Institutional review board statement: This study was reviewed and approved by the Ethics Committee of the University Hospital of Ioannina, Greece.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: Prof essor Elisaf M is an editorial member of World Journal of Experimental Medicine. The rest of authors have no conflict of interest relevant to this publication to declare.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Evangelos Liberopoulos, MD, PhD, FASA, FRSH, Assistant Professor of Internal Medicine, Department of Internal Medicine, School of Medicine, University of Ioannina, Stavrou Niarchou Avenue, 45110 Ioannina, Greece. email@example.com
Telephone: +30-26-51099265 Fax: +30-26-51007016
Received: November 7, 2016
Peer-review started: November 10, 2016
First decision: December 1, 2016
Revised: December 10, 2016
Accepted: January 2, 2017
Article in press: January 3, 2017
Published online: February 20, 2017