PubMed:22711886 / 14-25 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T2","span":{"begin":2,"end":10},"obj":"GeneOrGeneProduct"}],"text":"d factor 2 "}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T2","span":{"begin":2,"end":10},"obj":"GeneOrGeneProduct"}],"text":"d factor 2 "}