Melika Jahan Beikloo presented “Mitigating Harm from Disruption in Illicit Fentanyl Supply Networks: A Stochastic Bilevel Optimization Approach” at the 2026 INFORMS Healthcare Conference in Raleigh, North Carolina. The work, coauthored with F. Janan, Thomas C. Sharkey, and Mary E. Kurz, uses stochastic bilevel optimization to examine strategies for reducing harm associated with disruption and adaptation in illicit fentanyl supply networks.