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Estrogen Replacement Therapy
Radioimmunoassay
Pregnancy
Postmenopause
Prostaglandins
Estrogens
Progesterone
Oestradiol
Progestins
Breast Neoplasms
Coronary Disease
Cardiovascular Diseases
Blood Pressure
Women's Health
Menopause
Risk Factors
Randomized Controlled Trials
Time Factors
Corpus Luteum
Uterus
Co-Publications
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