PMC:1382200 / 9484-9485 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T21399","span":{"begin":0,"end":1},"obj":"NN"}],"text":"M"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T21148","span":{"begin":0,"end":1},"obj":"CHEBI_SO_EXT:molecular_indicator_or_label_or_marker_or_tag"}],"text":"M"}