PMC:1064854 / 1380-1383 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T992","span":{"begin":1,"end":2},"obj":"SYM"},{"id":"T993","span":{"begin":2,"end":3},"obj":"HYPH"}],"text":"α−/"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T710","span":{"begin":1,"end":2},"obj":"SO_EXT:sequence_nullness_or_absence"}],"text":"α−/"}