I. Camacho Díaz, M. Vela Rodríguez, L. Villanueva Aburto, A. Borja Villanueva, F. Montalvo Amanca, and J. Quispe Marcatoma, “Hydroxyapatite synthesized from the eggshell as a potential bone substitute in periodontal and peri-implant defects”, Odontol Sanmarquina, vol. 21, no. 4, pp. 296–301, Dec. 2018, doi: 10.15381/os.v21i4.15557.