Roy G, Kundu AR, Choudhury MAH, Mian MA, Mia M B, Kundu B. Supraclavicular brachial plexus block using 0.5% bupivacaine with and without fentanyl. Med. res. chronicles [Internet]. 2022Dec.3 [cited 2024Dec.22];9(6):658-65. Available from: https://medrech.com/index.php/medrech/article/view/645