Text and Data Mining valid from 2019-11-29
Received: 1 May 2019
Accepted: 8 November 2019
First Online: 29 November 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Medical Research and Ethics Committee (MREC), Ministry of Health Malaysia (NMRR-16-2474-32261). MREC approved the use of verbal consent to participate and verbal consent was also obtained from the participants.
: Not applicable.
: The authors declare that they have no competing interests.