PMC:1941754 / 6504-6513 JSONTXT

{"project":"craft-ca-core-dev","denotations":[{"id":"T509","span":{"begin":0,"end":9},"obj":"GO:0035825"}],"text":"crossover"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T664","span":{"begin":0,"end":9},"obj":"GO:0035825"}],"text":"crossover"}