Klara Magyar, Roland Gal, Adam Riba, Tamas Habon, Robert Halmosi, Kalman Toth, 1st Department of Medicine, University of Pecs, Medical School, 7624 Pecs, Hungary
Author contributions: Magyar K, Gal R and Riba A wrote the manuscript and generated figures; Halmosi R, Habon T and Toth K contributed to the writing of the manuscript and assured a professional surveillance.
Conflict-of-interest: All authors disclose any actual or potential conflict of interest including any financial, commercial, personal, political, intellectual, or religious interests or other relationships with other people or organizations which are related to the work submitted for consideration of publication.
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: Kalman Toth, MD, ScD, FESC, Professor, 1st Department of Medicine, University of Pecs, Medical School, H-7624 Ifjusag Str. 13., 7624 Pecs, Hungary. firstname.lastname@example.org
Received: September 27, 2014
Peer-review started: September 28, 2014
First decision: December 17, 2014
Revised: January 8, 2015
Accepted: January 30, 2015
Article in press: February 2, 2015
Published online: May 23, 2015