A. Joseph, V. Ashok, N. Parammal Ayyappankandi, S. Krishna, and G. Sunil, “A Comparative Study on the Efficacy of Lignocaine with Adrenaline and Ropivacaine for Post Tonsillectomy Pain Relief”, J Otorhinolaryngol Facial Plast Surg, vol. 11, no. 1, pp. 1–12, Apr. 2025.