"It's Gonna be a Lifeline": Findings From Focus Group Research to Investigate What People Who Use Opioids Want From Peer-Based Postoverdose Interventions in the Emergency Department. - Wagner KD; Mittal ML; Harding RW; Smith KP; Dawkins AD; Wei X; Woodard S; Roget NA; Oman RF (Annals of emergency medicine, 2020)