@article{chagas_almeida_lisboa_ferreira_mattos_mucha_2018, title={Duration of effectiveness of Botulinum toxin type A in excessive gingival display: a systematic review and meta-analysis}, volume={32}, ISSN={1806-8324}, url={https://doi.org/10.1590/1807-3107bor-2018.vol32.0030}, DOI={10.1590/1807-3107bor-2018.vol32.0030}, journal={Brazilian Oral Research}, publisher={Sociedade Brasileira de Pesquisa Odontológica - SBPqO}, author={Chagas, Taísa Figueiredo and Almeida, Natalia Valli de and Lisboa, Cinthia Oliveira and Ferreira, Daniele Masterson Tavares Pereira and Mattos, Claudia Trindade and Mucha, José Nelson}, year={2018}, pages={e30} }