PMC:1941754 / 3958-3969 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T830","span":{"begin":0,"end":11},"obj":"NNS"}],"text":"checkpoints"}

{"project":"craft-ca-core-dev","denotations":[{"id":"T426","span":{"begin":0,"end":11},"obj":"GO:0000075"}],"text":"checkpoints"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T550","span":{"begin":0,"end":11},"obj":"GO:0000075"}],"text":"checkpoints"}