PMC:7033263 / 18334-18368
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T151","span":{"begin":0,"end":34},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Availability of data and materials"}