Funding for this research was provided by:
International Medical University (IMU 389/2017)
Text and Data Mining valid from 2019-09-09
Received: 2 December 2018
Accepted: 3 September 2019
First Online: 9 September 2019
Ethics approval and consent to participate
: This study was approved by the Joint Committee of Research and Ethics of the International Medical University, Malaysia. Written informed consent were obtained from the parents of the participants.
: Not applicable.
: The author declare that she has no competing interests.