PMC:7267243 / 327-387
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T2","span":{"begin":1,"end":2},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"},{"id":"T3","span":{"begin":47,"end":48},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":" a single centre in Cologne, Germany.\n\nMethods\nA retrospecti"}
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T8","span":{"begin":39,"end":46},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" a single centre in Cologne, Germany.\n\nMethods\nA retrospecti"}