PMC:7473770 / 67-122
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":39,"end":47},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ed on phase contrast X-ray tomography\n\nAbstract\nWe pres"}