PMC:149366 / 1992-2003 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T867","span":{"begin":4,"end":11},"obj":"NNS"}],"text":"ull mutants"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T691","span":{"begin":4,"end":11},"obj":"SO_EXT:sequence_altered_entity"}],"text":"ull mutants"}