Hakim, M., Beltran, R. J., Khawaja, A. A., Syed, A., & Tobias, J. D. (2019). Prolonged Horner’s syndrome after intraoperative interscalene block. Anaesthesia, Pain & Intensive Care, 21(4), 468-471. Retrieved from https://apicareonline.com/index.php/APIC/article/view/77