PMC:7796344 / 12559-12579
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T93","span":{"begin":0,"end":20},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Immunization History"}