PMC:7781500 / 6487-6560
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T62","span":{"begin":9,"end":36},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"t 25%) \n Rarely (less than 10%)\nHand hygiene How frequently do you "}