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All samples were taken from the approved SIDS Biobank (REK 770196). Case data were anonymized prior to analysis. Informed consent was not applicable as the study involved only post-mortem data, but the next of kin have been given the opportunity to decline inclusion in research. None of the included cases have declined. The authors have no relevant financial or non-financial interests to disclose.","order":1,"name":"Ethics","label":"Ethical considerations","group":{"name":"EthicsHeading","label":"Declarations"}}]}}