PMC:7463108 / 4555-4730 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"92","span":{"begin":147,"end":162},"obj":"Disease"}],"attributes":[{"id":"A92","pred":"tao:has_database_id","subj":"92","obj":"MESH:D062787"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"escribed as occurring in three phases. The first phase began in the late 1990s with an increase in the number of prescription opioids. This led to overdose deaths that were at"}

{"project":"LitCovid-sentences","denotations":[{"id":"T39","span":{"begin":39,"end":134},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"escribed as occurring in three phases. The first phase began in the late 1990s with an increase in the number of prescription opioids. This led to overdose deaths that were at"}