Received: 13 March 2021
Accepted: 26 April 2021
First Online: 3 May 2021
: The ethics approval was obtained from the Medical Research Ethical Committee, Ministry of Health Malaysia. The study was also registered with the National Medical Research Registry under the protocol number NMRR-18-228-40047 (IIR). Written informed consent was obtained from all the caregivers prior to the data collection. Participants who were unable to comprehend participant information sheet and give written informed consent were excluded from this study. Participants who declared that they did not receive formal education were recruited only if they could read and comprehend participant information sheet, and give written informed consent prior to participate in this study. This study was conducted in accordance with the Declaration of Helsinki and the Malaysian Guideline for Good Clinical Practice.
: Not applicable.
: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.