Abdelrahman, Ayman, Mohamed Wasseef, Mohamed Hassan, and Ekramy Abdelghafar. “Evaluating the Effect of Ultrasound–guided Superficial Serratus Plane Block, Deep Serratus Plane Block and Thoracic Epidural Analgesia in Cancer Patients Undergoing Thoracotomy: A Randomized Controlled Trial”. Anaesthesia, Pain & Intensive Care 25, no. 6 (December 6, 2021): 713-721. Accessed July 2, 2024. https://apicareonline.com/index.php/APIC/article/view/1690.