<http://www.w3.org/2000/01/rdf-schema#label>
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DESCRIBE <http://research.tib.eu/covid-19/entity/Peptic%20ulcer%20of%20unspecified%20site%2C%20unspecified%20as%20acute%20or%20chronic%2C%20without%20mention%20of%20hemorrhage%20or%20perforation%2C%20without%20mention%20of%20obstruction>
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