PMC:7560808 / 6545-6561
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T88","span":{"begin":0,"end":16},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" vv-ECMO 7 (37)"}