Ankita Aggarwal, Manisha Jana, Deep Narayan Srivastava, Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi 110029, India
Vijay Kumar, Department of Orthopedics, All India Institute of Medical Sciences, New Delhi 110029, India
Kanwaljeet Garg, Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi 110029, India
Author contributions: Aggarwal A and Srivastava DN designed the research; Aggarwal A, Jana M and Srivastava DN performed the research; Kumar V and Srivastava DN provided administrative support; Aggarwal A and Garg K prepared the manuscript.
Institutional review board statement: Ethics clearance for this study was taken from the Ethics Committee of All India Institute of Medical Sciences, New Delhi, India.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: The authors do not have any 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: Deep Narayan Srivastava, Professor, Department of Radiodiagnosis, All India Institute of Medical Sciences, Room No 69, Ground Floor, Near South Extension, New Delhi 110029, India. firstname.lastname@example.org
Received: February 13, 2017
Peer-review started: February 14, 2017
First decision: April 19, 2017
Revised: June 24, 2017
Accepted: July 7, 2017
Article in press: July 10, 2017
Published online: October 28, 2017