Text and Data Mining valid from 2019-11-23
Received: 29 June 2019
Accepted: 14 November 2019
First Online: 23 November 2019
Compliance with ethical standards
: All authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Post Graduate Institute of Medical Education and Research, Chandigarh, India, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: An informed consent was obtained from all individual participants included in the study.