PubMed:23069675 / 522-530 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T14","span":{"begin":0,"end":8},"obj":"GeneOrGeneProduct"}],"text":"knockout"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T10","span":{"begin":0,"end":8},"obj":"GeneOrGeneProduct"}],"text":"knockout"}