PMC:149366 / 2142-2154 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T897","span":{"begin":4,"end":11},"obj":"NNS"}],"text":"ull mutants "}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T704","span":{"begin":4,"end":11},"obj":"SO_EXT:sequence_altered_entity"}],"text":"ull mutants "}