RecruitingClinical trialAdaptive Decision Support for Addiction Treatment (ADAPT) Serial Randomized Testing for Usability, Round 3This study is stage 2, round 3 of a larger study which refines and optimizes the EMBED clinical decision support (CDS) to increase number of ED physicians following standard of care for the administration of buprenorphine to appropriate patients with opioid use disorder. See NCT03658642