Tavares-Júnior, Mauro Costa Morais, Diego Ubrig Munhoz, João Pac¸o Vaz de Souza, Raphael Martus Marcon, Alexandre Fogaça Cristante, and Olavo Biraghi Letaif. 2019. “Evaluation of Alternative Halo Ring Positions in Children Using Tomography”. Clinics 74 (May): e781. https://doi.org/10.6061/clinics/2019/e781.