PMC:1914394 / 20077-20079 JSONTXT

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T10916","span":{"begin":0,"end":2},"obj":"PR_EXT:000013773"}],"text":"Rb"}

{"project":"craft-ca-core-dev","denotations":[{"id":"T10813","span":{"begin":0,"end":2},"obj":"PR:000013773"}],"text":"Rb"}