PubMed:15668505 / 250-254 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T7","span":{"begin":0,"end":4},"obj":"GeneOrGeneProduct"}],"text":"fold"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T5","span":{"begin":0,"end":4},"obj":"GeneOrGeneProduct"}],"text":"fold"}