Text and Data Mining valid from 2019-01-11
Received: 23 July 2018
Accepted: 3 December 2018
First Online: 11 January 2019
Compliance with ethical standards
: Varatharajan declares that he has no conflict of interest. Vasanth Kishorebabu declares that he/she has no conflict of interest.
: Articles do not contain studies with human participants or animals by any of the authors. Images used in the work are stored in database given in website given in reference CitationRef removed.The images used in the database can be used for research.