Nguyen, Tat, Dung Ngo, Nhu Pham, and Tanja Jantzen. “Caudal Epidural Morphine Versus Intravenous Morphine for Postoperative Analgesia in Pediatric Cardiac Surgery”. Anaesthesia, Pain & Intensive Care 26, no. 4 (May 8, 2022): 514-522. Accessed July 2, 2024. https://apicareonline.com/index.php/APIC/article/view/1959.