Sociodemographic Characteristics and Drug Use Practices Associated with Fentanyl Use Frequency Among People Who Use Drugs in Rhode Island. - Lai, Evelyn; Biello, Katie B.; Buxton, Jane A.; Hadland, Scott E.; Sherman, Susan G.; Goldman, Jacqueline E.; Noguchi, Julia E.; Marshall, Brandon D.L.; Macmadu, Alexandria (Substance Use & Misuse, 2026)