Simoes, Natália Myrrha, Pollyanna Moura Rodrigues Carneiro, Amaro Ilidio Vespasiano Silva, Paulo Eduardo Alencar de Souza, and Flávio Ricardo Manzi. 2017. “Anatomic Variation of Paranasal Sinuses”. Journal of Oral Diagnosis 2 (January). Brazil:1-6. https://doi.org/10.5935/2525-5711.20170038.