Monitoring for fentanyl within Australian supervised injecting facilities: Findings from feasibility testing of novel methods and collaborative workshops

Suzanne Nielsen, Monica J. Barratt, Sarah Hiley, Mark J. Bartlett, Julie Latimer, Marianne Jauncey, Claude Roux, Marie Morelato, Nicolas Clark, Michala Kowalski, Michael Gilbert, Leanne Francia, Alexandra Shipton, Dimitri Gerostamoulos, Linda Glowacki, Tina Lam