PubMed:18483878 / 86-94 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T2","span":{"begin":0,"end":8},"obj":"GeneOrGeneProduct"}],"text":"knockout"}

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T3","span":{"begin":0,"end":8},"obj":"GeneOrGeneProduct"}],"text":"knockout"}