PubMed:819433 / 702-764
Annnotations
sentences
{"project":"sentences","denotations":[{"id":"T6","span":{"begin":0,"end":62},"obj":"Sentence"},{"id":"T6","span":{"begin":0,"end":62},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The ecto-enzyme was active in the absence of divalent cations."}