PubMed:21238926 / 502-509 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T18","span":{"begin":0,"end":7},"obj":"GeneOrGeneProduct"}],"text":"unclear"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T15","span":{"begin":0,"end":7},"obj":"GeneOrGeneProduct"}],"text":"unclear"}