Text and Data Mining valid from 2018-11-09
Received: 5 March 2018
Accepted: 25 October 2018
First Online: 9 November 2018
Ethics approval and consent to participate
: Ethical approval was obtained from Ethical Review Committee of National of Sri Lanka to conduct the study. All patients gave informed written consent to participate in this study.
: Not obtained.
: The authors declare that they have no competing interests.
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