Text and Data Mining valid from 2019-09-11
Received: 30 July 2018
Accepted: 7 September 2019
First Online: 11 September 2019
Compliance with Ethical Standards
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: Ethical review for this study was granted by the ethical review committee at the CMH Lahore Medical College and Institute of Dentistry, Lahore Cantt, Pakistan. Written informed consent was provided by all participants who were ensured anonymity, reporting of group level findings and use of data for scholarly work. This study follows guidelines laid down by the Declaration of Helsinki.