PubMed:28851297 / 1502-1511 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T35","span":{"begin":0,"end":9},"obj":"GeneOrGeneProduct"}],"text":"precursor"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T26","span":{"begin":0,"end":9},"obj":"GeneOrGeneProduct"}],"text":"precursor"}