Spalding, Marianne, Priscila Ferreira Amschilnger, Marcela Almeida Prado, Ivan Balducci, and Yasmin Rodarte Carvalho. 2012. “Estrogen Treatment and Periodontal Disease Progression: An Experimental Study in Ovariectomized Rats”. Brazilian Dental Science 15 (3). São José dos Campos, Brazil:56-63. https://doi.org/10.14295/bds.2012.v15i3.844.