The Cannabist: How do marijuana vape pens work? SummitDaily.com What Arthritis and Chronic Pain Patients Need to Know About the Vaping Crisis Marijuana and Vaping: Shadowy Past, Dangerous Present The New York Times Vaping Marijuana Has Stronger Effects Than Smoking, Study Finds CardioSmart American College of Cardiology How People who Smoke or Vape Cannabis Transport the Chemical Residue into Clean Spaces Thirdhand Smoke Resource Center Are Medical Marijuana Vaping Products Safe? CannaMD