**Author details**

Raj Kumar<sup>1</sup> \* and Shiv Lal Yadav<sup>2</sup>

1 Department of Physical Medicine and Rehabilitation, Indira Gandhi Institute of Medical Sciences, Patna, India

2 Department of Physical Medicine and Rehabilitation, All India Institute of Medical Sciences, New Delhi, India

\*Address all correspondence to: drkrraj@gmail.com

© 2022 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
