TY - JOUR TI - Simultaneous determination of ethinyl estradiol and drospirenone in oral contraceptive by high performance liquid chromatography PY - 2013 AU - Silva, Viviane Benevenuti AU - Galdos, Angel Arturo Gaona AU - Mothe, Cintia Maria Alves AU - Pallastrelli, Michele Bacchi AU - Aurora-Prado, Maria Segunda AU - Singh, Anil Kumar AU - Kedor-Hackmann, Erika Rosa Maria AU - Santoro, Maria Inês Rocha Miritello T2 - Brazilian Journal of Pharmaceutical Sciences SN - 1984-8250 DO - 10.1590/s1984-82502013000300013 UR - https://doi.org/10.1590/s1984-82502013000300013 PP - São Paulo VL - 49 IS - 3 SP - 521-528 ER -