Letter: Biology, abortion, and ethics.
D000028:Abortion, Induced; D000305:Adrenal Cortex Hormones / Q000502:physiology*; D001943:Breast Neoplasms / Q000517:prevention & control; D004967:Estrogens / Q000502:physiology*; D004992:Ethics, Medical; D005260:Female; D006801:Humans; D011247:Pregnancy
D000305:Adrenal Cortex Hormones; D004967:Estrogens