Cagnani, A., Barros, A. M. de S., Sousa, L. L. A. de, Zanin, L., Bergamaschi, C. de C., Peruzzo, D. C. and Flório, F. M. (2016) “Periodontal disease as a risk factor for aspiration pneumonia: a systematic review ”, Bioscience Journal. Uberlândia, MG, 32(3), pp. 813–821. doi: 10.14393/BJ-v32n3a2016-33210.