PMC:7589163 / 82140-82193
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T751","span":{"begin":0,"end":1},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"A Randomized, Double-Blind, Placebo-Controlled Study."}
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T533","span":{"begin":0,"end":53},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"A Randomized, Double-Blind, Placebo-Controlled Study."}