Gelber, John The author responds: pain control in AC joint separation. [electronic resource] - The American journal of emergency medicine 05 2020 - 1038-1039 p. digital Publication Type: Letter; Comment ISSN: 1532-8171 Standard No.: 10.1016/j.ajem.2019.11.011 doi Subjects--Topical Terms: Acromioclavicular JointAnalgesicsEmergency Service, HospitalHumansPainUltrasonography, Interventional