On January 16, 2008, MAPS Volcano vaporizer research protocol was resubmitted to HHS for the required scientific review by the National Institute of Drug Abuse–Public Health Service (NIDA-PHS). The submission included three supportive letters from peer-reviewers (see 1, 2, 3), confirming the scientific merit of the study and urging NIDA-PHS to approve it. The goal of this study is to gather further information about the chemical constituents that are contained in the cannabis vapor stream.
