PMC:7160611 / 355-493 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T4","span":{"begin":13,"end":25},"obj":"http://purl.obolibrary.org/obo/OBI_0000245"},{"id":"T5","span":{"begin":32,"end":35},"obj":"http://purl.obolibrary.org/obo/CLO_0051582"},{"id":"T6","span":{"begin":51,"end":52},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"World Health Organization (WHO) has been raised as a worldwide problem. Radiological examinations were confirmed as effective methods for "}