Synthetic opioids such as fentanyl have overtaken prescription opioids as the No. 1 killer in the opioid epidemic, according to a new report.
원문출처 : https://www.cnn.com/2018/05/01/health/fentanyl-opioid-overdose-study/index.html
원문출처 : https://www.cnn.com/2018/05/01/health/fentanyl-opioid-overdose-study/index.html