Simultaneous determination of ethinyl estradiol and drospirenone in oral contraceptive by high performance liquid chromatography . Brazilian Journal of Pharmaceutical Sciences, [S. l.], v. 49, n. 3, p. 521–528, 2013. DOI: 10.1590/S1984-82502013000300013. Disponível em: https://www.revistas.usp.br/bjps/article/view/68983.. Acesso em: 27 maio. 2024.