PMC:7164859 / 9860-9920
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T87","span":{"begin":0,"end":60},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Prefer the “closed” technique for obtaining pneumoperitoneum"}