PMC:7781500 / 7516-7613
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T82","span":{"begin":0,"end":97},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Stata 15.0 statistical software (StataCorp LLC, College Station, USA) was used for data analysis."}