Antagonist Effect of Theophylline and Caffeine on Some Transaminase Enzymes Activities. Global Journal of Science Frontier Research, [S. l.], v. 13, n. B3, p. 29–27, 2013. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/756. Acesso em: 6 feb. 2026.