<status value="unknown" /> <description value="Individualized endurance-oriented training intervention in patients with persistent complaints after infection with SARS-CoV-2 (Long COVID-19 syndrome)" /> <characteristic> <definitionCodeableConcept> <coding> <system value="http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl" /> <code value="C15184" /> <display value="Behavioral Intervention (Therapeutic or Preventive Procedure)" /> </coding> </definitionCodeableConcept> </characteristic> </EvidenceVariable>