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Permission for inclusion was obtained from the patient or the patient\u2019s next of kin. The study was performed per the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.","order":1,"name":"Ethics","label":"Ethical approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","label":"<b>Clinical trial registration<\/b>","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"No individual data is presented in the study.","order":3,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Jonatan Oras received funding from the Swedish Heart-Lung Foundation, the Swedish government and county councils (the ALF agreement), the foundation of Ollie and Elof Ericsson and the Emelle Foundation for the conduct of this study. None of the other authors have any conflicts of interest to declare.","order":4,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"543"}}