Gerard J O’Sullivan, Fiona L Carty, Carmel G Cronin, Department of Radiology, Mater Misericordiae University Hospital, Dublin 7, Ireland
Author contributions: O’Sullivan GJ, Carty FL and Cronin CG contributed equally to this work; O’Sullivan GJ wrote the paper.
Conflict-of-interest statement: None.
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: Carmel G Cronin, MB, BCh, BAO, Consultant Radiologist, Department of Radiology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland. firstname.lastname@example.org
Telephone: +353-1-8032274 Fax: +353-1-8032970
Received: July 17, 2014
Peer-review started: July 19, 2014
First decision: November 27, 2014
Revised: February 13, 2015
Accepted: June 18, 2015
Article in press: June 19, 2015
Published online: August 28, 2015