PMC:1315279 / 14482-14486 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T3378","span":{"begin":2,"end":3},"obj":"SYM"},{"id":"T3379","span":{"begin":3,"end":4},"obj":"HYPH"}],"text":"68−/"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T3007","span":{"begin":2,"end":3},"obj":"SO_EXT:sequence_nullness_or_absence"}],"text":"68−/"}