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CIDO modeling and analysis of COVID-19 symptoms. (A) Generation and usage of two new relations in CIDO to link COVID-19 to symptoms or comorbidities. (B) SPARQL query of typical digestive phenotypes associated with COVID-19 disease (process). Four phenotypes (i.e., vomiting, diarrhea, nausea, and abdominal pain) were identified. The Ontobee SPARQL website (http://www.ontobee.org/sparql) was used to perform the query.
