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  1. Toxins in marijuana smoke may be harmful to health, study finds

  2. Study finds new evidence of health threat from chemicals in marijuana

  3. Researchers identify more than 100 toxic chemicals in cannabis …

  4. Analysis of marijuana smoke reveals more than 100 toxic chemicals

  5. Modern Marijuana Is Often Laced With Heavy Metals and Fungus

  6. Is Marijuana Bad for Health? Here’s What We Know So Far

  7. Cannabis-Related Disorders and Toxic Effects | NEJM

  8. Study finds new evidence of health threat from chemicals in marijuana ...

  9. New evidence of health threat from chemicals in marijuana and tobacco ...

  10. New Evidence Discovered of Health Threat From Chemicals