Received: 6 December 2017
Accepted: 9 August 2018
First Online: 20 August 2018
Ethical approval and consent to participate
: The study questionnaire, protocols, consent forms, participant information sheet and study-related flyer to recruit the study subjects were approved by the Research Ethics Committee (IREC) of Kulliyyah of Medicine, International Islamic University Malaysia (IIUM), Kuantan on 9th October 2014, IREC no. 302 and by the National Medical Research Registration (NMRR.NO:15–180-24,825). Written consent was obtained from all the participants before their enrolment in the study.
: Not Applicable
: The authors declare that they have no competing interests.
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