PMC:7317273 / 6039-6166 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T36","span":{"begin":0,"end":127},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"None of the above studies have gender restriction, and the minimum follow-up time is 3 months for each of these investigations."}