CORD-19:b75e7f3f923023185daed6f29e5beca4eddfc109 / 53488-53673 JSONTXT

{"project":"CORD-19-Sentences","denotations":[{"id":"TextSentencer_T327","span":{"begin":0,"end":185},"obj":"Sentence"},{"id":"T27807","span":{"begin":0,"end":185},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The trans-fected cells were selected by incubating with 2 g/ml puromycin for 72 h, and then isogenic cell lines were isolated by serial dilutions and allowed to expand for 2 to 3 weeks."}