Effect of cellulose acetate phthalate and polyethylene glycol on physical properties and release of theophylline from microcapsules . Brazilian Journal of Pharmaceutical Sciences, [S. l.], v. 52, n. 1, p. 27–34, 2016. DOI: 10.1590/S1984-82502016000100004. Disponível em: https://revistas.usp.br/bjps/article/view/118653.. Acesso em: 9 may. 2024.