PubMed:30836660 / 1194-1200 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T23","span":{"begin":0,"end":6},"obj":"GeneOrGeneProduct"}],"text":"matrix"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T9","span":{"begin":0,"end":6},"obj":"GeneOrGeneProduct"}],"text":"matrix"}