Text and Data Mining valid from 2019-02-13
Received: 23 July 2018
Accepted: 6 February 2019
First Online: 13 February 2019
Ethical approval and consent to participate
: This study was registered under National Medical Research Register (NMRR-16-1718-32,614, NMRR-16-1840-32,813) and approved by Malaysian Medical Research Ethics Committee (MREC), MoH Malaysia. According to MREC guideline, informed consent is not needed if the study involves the collection or use of existing data and records, or if anonymity of study subjects are assured [CitationRef removed]. This study involved review of existing medical records and all cases were anonymized during data analysis.
: The authors declare that they have no competing interests.
: This is not applicable as this manuscript does not contain any individual person’s identifiable data or information.
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