Rathnayake, Hasanga
Lekamwasam, Sarath
Wickramatilake, Chandima
Lenora, Janaka
Article History
Received: 31 March 2019
Accepted: 31 July 2019
First Online: 20 August 2019
Compliance with ethical standards
: The research protocol was approved by the Ethical Review Committee of the Faculty of Medicine, University of Ruhuna, Sri Lanka (Ref No 09.03.2016:3.17). All participants were provided with full information about the study purpose and written informed consent was obtained prior to data collection.
: None.