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EP is an author of a patent DIAGNOSTIC METHOD FOR LONG COVID PCT application number GB2105644.5. EP is a founding director of Biocode Technologies, a Stellenbosch University start-up company. RB is a postgraduate student of EP.SRR has consultancies with Regeneron, argenx BV, Antag Pharma, Novo Nordisk, and Lumia Health; grants from the Heart & Stroke Foundation of Canada, Dysautonomia International, StandingUpToPOTS, and the Canerector Foundation; and research trial enrolment fees from Medtronic Inc. MAK has appeared on the StandingUpToPOTS podcast as a patient\/clinician contributor; no honorarium was received. None of these relationships are related to the present work. All other authors: no competing interests to declare.","order":1,"name":"Ethics","label":"Declaration of interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"305"}}