PMC:1064854 / 652-656
Annnotations
craft-sa-dev
{"project":"craft-sa-dev","denotations":[{"id":"T849","span":{"begin":1,"end":2},"obj":"SYM"},{"id":"T850","span":{"begin":2,"end":3},"obj":"HYPH"},{"id":"T851","span":{"begin":3,"end":4},"obj":"SYM"}],"text":"α−/−"}
craft-ca-core-ex-dev
{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T671","span":{"begin":1,"end":2},"obj":"SO_EXT:sequence_nullness_or_absence"},{"id":"T672","span":{"begin":3,"end":4},"obj":"SO_EXT:sequence_nullness_or_absence"}],"text":"α−/−"}