Comparative study of single dose pre-emptive pregabalin vs. Placebo for post-operative pain relief in middle ear surgery. International Journal of Biomedical and Advance Research, [S. l.], v. 5, n. 3, p. 170–173, 2014. DOI: 10.7439/ijbar.v5i3.678. Disponível em: https://ssjournals.co.in/index.php/ijbar/article/view/482. Acesso em: 11 mar. 2026.