PMC:7105881 / 28070-28102 JSONTXT

{"project":"2_test","denotations":[{"id":"32265848-15474494-36511117","span":{"begin":11,"end":15},"obj":"15474494"},{"id":"32265848-17092615-36511118","span":{"begin":28,"end":32},"obj":"17092615"}],"text":"He et al., 2004; Du et al., 2007"}