Susila, D., and R. Laksono. “Ultrasound-Guided Interscalene Block Is Effective for Anesthesia and Postoperative Analgesia for Clavicle Fracture Surgery”. Anaesthesia, Pain & Intensive Care, Vol. 26, no. 1, Feb. 2022, pp. 25-30, doi:10.35975/apic.v26i1.1762.