Costa, Fábio Wildson Gurgel, et al. “ Histomorphometric Assessment of Bone Necrosis Produced by Two Cryosurgery Protocols Using Liquid Nitrogen: An Experimental Study on Rat Femurs ”. Journal of Applied Oral Science, vol. 19, no. 6, Dec. 2011, pp. 604-9, https://doi.org/10.1590/S1678-77572011000600010.