Funding for this research was provided by:
Universiti Sultan Zainal Abidin Special Research Grant Scheme (UniSZA/2017/SRGS/16)
Received: 26 December 2018
Accepted: 24 January 2020
First Online: 2 March 2020
Ethics approval and consent to participate
: Ethical approvals were obtained from the Human Research Ethics Committee of Universiti Sains Malaysia [ref no: USM/JEPeM/17020146]. The questionnaire was designed to be anonymous, and informed written consent was obtained from every respondent. The data were kept confidential and the results would not identify the respondents personally.
: Not applicable.
: The authors declare that they have no competing interest.