PMC:7212965 / 54707-54751
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T359","span":{"begin":0,"end":44},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Supplement Figure 1 PRISMA 2009 Flow Diagram"}