PMC:1166548 / 1254-1262 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T371","span":{"begin":1,"end":7},"obj":"NN"}],"text":" marker "}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T115","span":{"begin":1,"end":7},"obj":"CHEBI_SO_EXT:molecular_indicator_or_label_or_marker_or_tag"}],"text":" marker "}