PMC:7543471 / 218-257
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":18,"end":26},"obj":"Sentence"},{"id":"T3","span":{"begin":27,"end":35},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"increased demand\n\nAbstract\nAbstract\n\nOB"}