PubMed:22836123 / 330-336 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T8","span":{"begin":0,"end":6},"obj":"GeneOrGeneProduct"}],"text":"factor"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T4","span":{"begin":0,"end":6},"obj":"GeneOrGeneProduct"}],"text":"factor"}