| http://www.w3.org/ns/prov#value | - (a) one or more estrogens with one or more progestins, natural or synthetic, for contraceptive purposes or in the treatment of the symptoms of menopause, for example estradiol, ethynylestradiol, estriol and derivatives thereof in association with norethisterone acetate, norgestrel, levonorgestrel, desogestrel, norgestimate, lynestrenol, gestodene, nomegestrol acetate or dienogest;
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