PMC:7144508 / 6787-6930 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T61","span":{"begin":0,"end":143},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"It is necessary to establish rules of occupational protection and risk prevention monitoring systems and integrate these into regular training."}