PMC:340383 / 14322-14333 JSONTXT

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{"project":"craft-ca-core-dev","denotations":[{"id":"T6540","span":{"begin":0,"end":7},"obj":"GO:0009986"}],"text":"surface of "}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T6551","span":{"begin":0,"end":7},"obj":"GO:0009986"}],"text":"surface of "}