Rates of vaporizing cannabis using e-cigarettes were high. These findings raise concerns about the lack of e-cigarette regulations and the potential use of e-cigarettes for purposes other than vaping nicotine.
Links
[1] http://pediatrics.aappublications.org/content/early/2015/09/01/peds.2015-1727.abstract?sid=406ba54c-3fa9-448a-9153-c5b88b7bb8d1
[2] http://rethinkpot.org/tags/vaping
[3] http://rethinkpot.org/tags/youth