estradiol 50 µg / 24 u pleister (transderm.) (I) + estradiol 50 µg + levonorgestrel 10 µg / 24 u pleister (transderm.) (II)
estradiol 50 µg / 24 u pleister (transderm.) (I) + estradiol 50 µg + levonorgestrel 10 µg / 24 u pleister (transderm.) (II)