PMC:7152911 / 76726-76778 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T625","span":{"begin":20,"end":52},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Sample preparation: Filtration and pre-concentration"}