PMC:1359071 / 681-693 JSONTXT

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T514","span":{"begin":2,"end":3},"obj":"SO_EXT:sequence_nullness_or_absence"},{"id":"T515","span":{"begin":4,"end":5},"obj":"SO_EXT:sequence_nullness_or_absence"}],"text":"oE−/− popula"}

{"project":"craft-sa-dev","denotations":[{"id":"T650","span":{"begin":2,"end":3},"obj":"SYM"},{"id":"T651","span":{"begin":3,"end":4},"obj":"HYPH"},{"id":"T652","span":{"begin":4,"end":5},"obj":"SYM"}],"text":"oE−/− popula"}