Sven H Loosen, Florian Schueller, Christian Trautwein, Sanchari Roy, Christoph Roderburg, Department of Medicine III, University Hospital RWTH Aachen, 52074 Aachen, Germany
Author contributions: Loosen SH and Schueller F share first authorship; Roy S and Roderburg C share senior authorship; all authors designed, wrote and drafted the manuscript.
Conflict-of-interest statement: The authors declare no conflict of interest.
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: Dr. Christoph Roderburg, PD, Department of Medicine III, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany. email@example.com
Telephone: +49-241-8035367 Fax: +49-241-8082455
Received: January 27, 2017
Peer-review started: February 12, 2017
First decision: March 8, 2017
Revised: March 27, 2017
Accepted: April 6, 2017
Article in press: April 10, 2017
Published online: April 28, 2017