[Changes in the estrogen levels in threatened abortion and premature labor].
D000028:Abortion, Induced / Q000517:prevention & control*; D000022:Abortion, Spontaneous; D000033:Abortion, Threatened; D004967:Estrogens; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature; D011247:Pregnancy
D004967:Estrogens
ABORTION/prevention and control