PMC:7152911 / 77060-77211 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T627","span":{"begin":15,"end":21},"obj":"Sentence"},{"id":"T628","span":{"begin":22,"end":89},"obj":"Sentence"},{"id":"T629","span":{"begin":91,"end":115},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"(Zourob et al. 2008). We next discuss sample filtration and pre-concentration techniques.\n\n3.1.1 Sample filtration\nGenerally, sample filtration relies"}