PMC:7454258 / 24432-24574 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T163","span":{"begin":0,"end":142},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"While less well documented by national surveillance data, the levels and types of food processing have substantially changed in the past 50 y."}