PMC:7601109 / 5243-5286
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T49570","span":{"begin":36,"end":41},"obj":"http://purl.obolibrary.org/obo/CLO_0001195"}],"text":"Most trials are in phase 1 or phase 2 [19]."}
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T32","span":{"begin":0,"end":43},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Most trials are in phase 1 or phase 2 [19]."}