PMC:7463108 / 2152-2334 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T32967","span":{"begin":118,"end":119},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"in the previous year (UNODC 2019a). North America remains the region with the highest non-medical use of opioids with a staggering 4% of the population aged 15–64 using opioids (UNOD"}