PMC:7143804 / 30619-30651
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T236","span":{"begin":0,"end":32},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Milling and Optical Transparency"}