OLIVEIRA, Juliana Blume de; SANTOS, Bruno Pereira dos; ARBO, Marcelo Dutra. Valproic acid extraction methods in human samples using gas chromatography: a review. Drug Analytical Research, Porto Alegre, v. 8, n. 1, p. 3–12, 2026. DOI: 10.22456/2527-2616.138963. Disponível em: https://seer.ufrgs.br/index.php/dar/article/view/138963. Acesso em: 14 sep. 2026.