Chandan J Das, Usha Thingujam, Ananya Panda, Sanjay Sharma, Arun Kumar Gupta, Department of Radiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
Author contributions: Das CJ, Thingujam U and Panda A contributed equally to conception, article design, literature search, article drafting, critical revision and image preparation; Das CJ and Sharma S helped with the article concept and revision; Das CJ and Gupta AK helped in article preparation and final approval of version of article to be published.
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: Dr. Chandan J Das, MD, DNB, MNAMS, Assistant Professor, Department of Radiology, All India Institute of Medical Sciences, Room No. 63, Ansari Nagar, New Delhi 110029, India. email@example.com
Telephone: +91-11-26594889 Fax: +91-11-26588663
Received: December 1, 2014
Peer-review started: December 2, 2014
First decision: February 7, 2015
Revised: March 30, 2015
Accepted: June 4, 2015
Article in press: June 8, 2015
Published online: July 28, 2015