PMC:7544943 / 36544-36578
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T328","span":{"begin":0,"end":34},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Principal component analysis (PCA)"}