“…Methods of use include oral ingestion, vaping, or smoking in rolled cigarettes ("joints"), water pipes ("bongs"), or hollowed-out cigars ("blunts"; Johnston et al, 2019). A recent national survey of adolescents ages 14-18 years revealed that smoking cannabis was the most frequent and consistent route of use (Knapp et al, 2019). The significant increase in the potency of cannabis over the past two decades (4% in 1995 to 12% in 2014) poses a higher risk for use among youth 1 (ElSohly et al, 2016) The sociopolitical landscape and public discourse about cannabis has evolved over the past two decades; as of publication, 34 states plus the District of Columbia, Guam, Puerto Rico and US Virgin Islands have enacted laws for medical marijuana use and 9 states plus the District of Columbia have legalized small amounts of cannabis for adult recreational use (National Council of State Legislatures, 2019).…”