APA

Endrikat J., Jaques M. A., Mayerhofer M., Pelissier C., Müller U. & Düsterberg B. (19960522). A twelve-month comparative clinical investigation of two low-dose oral contraceptives containing 20 micrograms ethinylestradiol/75 micrograms gestodene and 20 micrograms ethinylestradiol/150 micrograms desogestrel, with respect to efficacy, cycle control and tolerance. : Contraception.

Chicago

Endrikat J, Jaques M A, Mayerhofer M, Pelissier C, Müller U and Düsterberg B. 19960522. A twelve-month comparative clinical investigation of two low-dose oral contraceptives containing 20 micrograms ethinylestradiol/75 micrograms gestodene and 20 micrograms ethinylestradiol/150 micrograms desogestrel, with respect to efficacy, cycle control and tolerance. : Contraception.

Harvard

Endrikat J., Jaques M. A., Mayerhofer M., Pelissier C., Müller U. and Düsterberg B. (19960522). A twelve-month comparative clinical investigation of two low-dose oral contraceptives containing 20 micrograms ethinylestradiol/75 micrograms gestodene and 20 micrograms ethinylestradiol/150 micrograms desogestrel, with respect to efficacy, cycle control and tolerance. : Contraception.

MLA

Endrikat J, Jaques M A, Mayerhofer M, Pelissier C, Müller U and Düsterberg B. A twelve-month comparative clinical investigation of two low-dose oral contraceptives containing 20 micrograms ethinylestradiol/75 micrograms gestodene and 20 micrograms ethinylestradiol/150 micrograms desogestrel, with respect to efficacy, cycle control and tolerance. : Contraception. 19960522.