Vaping remained popular among teens across the United States in 2019, according to a new report, and there were significant increases in vaping of marijuana by eighth, 10th and 12th graders.
원문출처 : https://www.cnn.com/2019/12/18/health/teen-vaping-marijuana-monitoring-the-future-survey/index.html
원문출처 : https://www.cnn.com/2019/12/18/health/teen-vaping-marijuana-monitoring-the-future-survey/index.html