PMC:1860061 / 20521-20523 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T13783","span":{"begin":0,"end":2},"obj":"NN"}],"text":"Mb"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T13355","span":{"begin":1,"end":2},"obj":"CHEBI_SO_EXT:base"}],"text":"Mb"}