PMC:1064854 / 845-853 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T884","span":{"begin":4,"end":8},"obj":"NNS"},{"id":"T885","span":{"begin":0,"end":1},"obj":"SYM"},{"id":"T886","span":{"begin":1,"end":2},"obj":"HYPH"},{"id":"T887","span":{"begin":2,"end":3},"obj":"SYM"}],"text":"−/− mice"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T681","span":{"begin":0,"end":1},"obj":"SO_EXT:sequence_nullness_or_absence"},{"id":"T682","span":{"begin":2,"end":3},"obj":"SO_EXT:sequence_nullness_or_absence"},{"id":"T683","span":{"begin":4,"end":8},"obj":"NCBITaxon:10088"}],"text":"−/− mice"}

{"project":"craft-ca-core-dev","denotations":[{"id":"T606","span":{"begin":4,"end":8},"obj":"NCBITaxon:10088"}],"text":"−/− mice"}