PMC:7463108 / 2011-2148 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"41","span":{"begin":77,"end":83},"obj":"Species"}],"attributes":[{"id":"A41","pred":"tao:has_database_id","subj":"41","obj":"Tax:9606"}],"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":"catastrophic levels. According to the latest World Drug Report, 53.4 million people worldwide used opioids in 2017, which is 56% higher t"}