Oral Contraceptives,Phasic

《英文msh詞典》Oral Contraceptives,Phasic
[入口詞] Oral Contraceptives,Phasic
[主題詞] Contraceptives,Oral
[英文釋義] Compounds,usually hormonal,taken orally in order to block ovulation and prevent the occurrence of pregnancy. The hormones are generally estrogen or progesterone or both.