Chowdhury, M. A., Yasmeen, N., Rabbani, S. G., Malakar, M., Hoque, F., & Lisa, T. F. (2011). Advantages of ultrasonic tonsillectomy by harmonic scalpel. Bangladesh Journal of Otorhinolaryngology, 16(2), 91–95. https://doi.org/10.3329/bjo.v16i2.6843