PMC:1626108 / 12225-12229 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T11307","span":{"begin":0,"end":4},"obj":"NN"}],"text":"urea"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T10824","span":{"begin":0,"end":4},"obj":"CHEBI:16199"}],"text":"urea"}

{"project":"craft-ca-core-dev","denotations":[{"id":"T10725","span":{"begin":0,"end":4},"obj":"CHEBI:16199"}],"text":"urea"}