PubMed:20558148 / 501-511 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T11","span":{"begin":0,"end":10},"obj":"GeneOrGeneProduct"}],"text":"amino acid"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T7","span":{"begin":0,"end":10},"obj":"GeneOrGeneProduct"}],"text":"amino acid"}