title: Characteristics, attitudes and implications of fentanyl use based on reports from self-identified fentanyl users.
mesh_terms: D002140:California; D005283:Fentanyl / Q000009:adverse effects / Q000494:pharmacology*; D006801:Humans; D009293:Opioid-Related Disorders / Q000523:psychology*
chemical_list: D005283:Fentanyl