**Author details**

Sanchita Roy Pradhan, Sutapa Mahata, Dipanwita Ghosh, Pranab Kumar Sahoo, Sinjini Sarkar, Ranita Pal and Vilas D. Nasare\* Department of Pathology and Cancer Screening, Chittaranjan National Cancer Institute, Kolkata, India

\*Address all correspondence to: vilas.dr@gmail.com

© 2020 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.
