Text and Data Mining valid from 2018-10-20
Received: 16 December 2017
Accepted: 4 October 2018
First Online: 20 October 2018
Ethics approval and consent to participate
: Ethical aspects of this study were reviewed by the Ethical Review Committee of the (EC-16-108), Faculty of Medicine, University of Colombo, Sri Lanka, which granted approval. Informed written consent was taken from each participant before giving the questionnaire.
: Not applicable.
: The authors declare that they have no competing interests.
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