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In 2007, the Medical Research and Ethics Committee (MREC), Ministry of Health Malaysia, approved the National Cardiovascular Disease (NCVD) registry study (Approval Code: NMRR-07\u201320-250). The study was conducted in accordance with the ethical principles of the Declaration of Helsinki. The MREC waived the requirement for informed patient consent due to the retrospective nature of the registry study.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"335"}}