PMC:7115396 / 6446-6531
Annnotations
2_test
{"project":"2_test","denotations":[{"id":"32057575-29366709-143294052","span":{"begin":67,"end":69},"obj":"29366709"},{"id":"32057575-30355423-143294053","span":{"begin":73,"end":75},"obj":"30355423"}],"text":" recent years as they display increased safety and efficacy [28], [29], [30]. As reve"}