PMC:7143707 / 8239-8297
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T65","span":{"begin":0,"end":58},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"• Selection of an appropriate respirator approved by NIOSH"}