Study finds vaping is linked to smoking cigarettes, using marijuana and other drugs over time Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center Weed coming on too strong? Dosing is intended to give vapers control over their cannabis Los Angeles Times Smoking vs. Vaping Weed: Know the Facts Hackensack Meridian Health Are Weed Vape Pens Safe? How to use a vape pen: Tips on getting the most out of a marijuana vaporizer The Denver Post