Formulation of gastroretentive floating drug delivery system using hydrophilic polymers and its in vitro characterization . Brazilian Journal of Pharmaceutical Sciences, [S. l.], v. 50, n. 2, p. 431–439, 2014. DOI: 10.1590/S1984-82502014000200023. Disponível em: https://www.revistas.usp.br/bjps/article/view/86951.. Acesso em: 16 jun. 2024.