Aro, H., Kallioniemi, H., Aho, A. J., & Kellokumpu-Lehtinen, P. (1981). Ultrasonic Device in Bone Cutting: A Histological and Scanning Electron Microscopical Study. Acta Orthopaedica, 52(1), 5–10. https://doi.org/10.3109/17453678108991750