Received: 27 February 2017
Accepted: 15 February 2018
First Online: 21 February 2018
Ethics approval and consent to participate
: Ethical clearance for the study was obtained from the Ethical Review Committee (ERC) of the Faculty of Medicine, University of Kelaniya, Sri Lanka (P/155/10/2015). People who were not willing to participate in the study due to one or more of the following reasons: religious beliefs, absence of house head or a feeling that it is not worth participating were not considered for the study, were excluded. Written consents were obtained from the study participants prior to the interviews and all data collected was kept confidential.
: Not applicable
: The authors declare that they have no competing interests.
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