PubMed:15042318 / 216-222 JSONTXT

{"project":"LitCoin-GeneOrGeneProduct-v0","denotations":[{"id":"T4","span":{"begin":2,"end":6},"obj":"GeneOrGeneProduct"}],"text":"B-cell"}

{"project":"LitCoin-GeneOrGeneProduct-v2","denotations":[{"id":"T3","span":{"begin":2,"end":6},"obj":"GeneOrGeneProduct"}],"text":"B-cell"}