T. Hamdi, E. S. Mastari, A. P. Lubis, I. Ghozali, N. Kemalasari, and A. T. Harahap, “Effectiveness and safety of thoracic segmental spinal anesthesia for breast surgery: A systematic review and meta-analysis”, Narra J, vol. 5, no. 1, p. e1630, Jan. 2025.