CORD-19:0049ba8861864506e1e8559e7815f4de8b03dbed / 18354-18467 JSONTXT

{"project":"CORD-19-Sentences","denotations":[{"id":"TextSentencer_T114","span":{"begin":0,"end":113},"obj":"Sentence"},{"id":"T58325","span":{"begin":0,"end":113},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"We therefore produced and purified soluble CD4 using the drosophila S2 expression system (see Additional File 3)."}