Received: 7 September 2018
Accepted: 19 October 2018
First Online: 19 November 2018
: IA is a specialist in Community Medicine, has Masters degree and Doctorate of Medicine in Community Medicine and is attached to the Ministry of Health, Nutrition and Indigenous Medicine, Sri Lanka and currently serving at the National programme for prevention and control of non-communicable diseases.MN is a Consultant Gastroenterologist, has Doctorate of Medicine in Medicine, currently serving at the National Hospital of Sri Lanka.CA is a Professor in Community Medicine and has Masters Degree and Doctorate of Medicine in Community Medicine, attached to the Department of Community Medicine, Faculty of Medicine, University of Colombo, Sri Lanka.
: Ethics clearance was obtained from the ethics review committee of the Faculty of Medicine, University of Colombo, Sri Lanka. Administrative clearance was obtained from the Directors and the relevant Specialists of the NCIM and the National Hospital of Sri Lanka. Written informed consent was obtained from all the eligible participants of the study.
: Not applicable.
: The authors declare that they have no financial and non-financial competing interests.
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