Text and Data Mining valid from 2018-04-17
Received: 9 February 2018
Accepted: 21 March 2018
First Online: 17 April 2018
Ethics approval and consent to participate
: Ethics approval was obtained from the institute ethics committee of Velammal Medical College Hospital and Research Institute, Madurai, Tamil Nadu, India. Written informed consent was taken from the students, and the consent process was approved by the ethics committee.
: Not applicable. No individual person’s personal details, images or videos are being used in this study.
: The authors declare that they have no competing interests.
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