CORD-19:f2350d58c349650fa25cdb2b61372f6f9b8e8d68 / 3824-4086 JSONTXT

{"project":"CORD-19_Custom_license_subset","denotations":[{"id":"T38","span":{"begin":0,"end":262},"obj":"Sentence"}],"text":"Plaque reduction neutralization tests were performed by mixing equal volumes of fourfold dilutions of sera (previously heat-inactivated at 56 ° C for 30 minutes) and the virus suspension diluted to contain approximately 30 plaque-forming units (PFU) 8* per welt."}

{"project":"CORD-19-Sentences","denotations":[{"id":"TextSentencer_T38","span":{"begin":0,"end":262},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Plaque reduction neutralization tests were performed by mixing equal volumes of fourfold dilutions of sera (previously heat-inactivated at 56 ° C for 30 minutes) and the virus suspension diluted to contain approximately 30 plaque-forming units (PFU) 8* per welt."}