PubMed:20588063 / 175-182 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T4","span":{"begin":0,"end":7},"obj":"GeneOrGeneProduct"}],"text":"unclear"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T4","span":{"begin":0,"end":7},"obj":"GeneOrGeneProduct"}],"text":"unclear"}