Domingues, Roberta Santos, Bruna Fidêncio Rahal Ferraz, Sebastião Luiz Aguiar Greghi, Maria Lúcia Rubo de Rezende, Euloir Passanezi, and Adriana Campos Passanezi Sant’Ana. 2012. “Influence of Combined Oral Contraceptives on the Periodontal Condition”. Journal of Applied Oral Science 20 (2): 253-59. https://doi.org/10.1590/S1678-77572012000200022.