PubMed:21402705 / 479-573 JSONTXT

{"project":"sentences","denotations":[{"id":"TextSentencer_T5","span":{"begin":0,"end":94},"obj":"Sentence"},{"id":"T5","span":{"begin":0,"end":94},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Invalidation studies revealed that the protein was required for optimal placental development."}

{"project":"performance-test","denotations":[{"id":"PD-UBERON-AE-B_T4","span":{"begin":72,"end":81},"obj":"http://purl.obolibrary.org/obo/UBERON_0001987"}],"text":"Invalidation studies revealed that the protein was required for optimal placental development."}