title: Estrogens: why harmless as menopausal therapy but hazardous in the "Pill"?
mesh_terms: D001695:Biology; D001769:Blood; D001777:Blood Coagulation; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D004997:Ethinyl Estradiol; D005193:Family Planning Services; D019290:Megestrol Acetate; D008593:Menopause; D010827:Physiology; D012098:Reproduction; D013923:Thromboembolism
chemical_list: D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal; D004997:Ethinyl Estradiol; D019290:Megestrol Acetate
keywords: Biology; Blood Coagulation Effects; Contraception; Contraceptive Agents, Estrogen--side effects; Contraceptive Agents, Estrogen--therapeutic use; Contraceptive Agents, Female--side effects; Contraceptive Agents, Female--therapeutic use; Contraceptive Agents--side effects; Contraceptive Agents--therapeutic use; Ethinyl Estradiol; Family Planning; Hematological Effects; Hemic System; Megestrol Acetate; Menopause; Oral Contraceptives; Physiology; Reproduction; Thromboembolism