PMC:1941754 / 281-294 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T177","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"checkpoints t"}

{"project":"craft-ca-core-dev","denotations":[{"id":"T12","span":{"begin":0,"end":11},"obj":"GO:0000075"}],"text":"checkpoints t"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T75","span":{"begin":0,"end":11},"obj":"GO:0000075"}],"text":"checkpoints t"}