A. Díaz Soriano, V. Lévano Torres, S. Pastor Yataco, A. Vallejos Pulido, and L. Huamanyauri Gonzales, “Gingival hyperplasia by upper airway obstruction”, Odontol Sanmarquina, vol. 12, no. 2, pp. 83–85, Dec. 2009, doi: 10.15381/os.v12i2.2873.