New easy improved and safe methods of posterior superior alveolar nerve block. International Journal of Biomedical and Advance Research, [S. l.], v. 9, n. 7, p. 255–258, 2018. DOI: 10.7439/ijbar.v9i7.4739. Disponível em: https://ssjournals.co.in/index.php/ijbar/article/view/4739. Acesso em: 11 mar. 2026.