The myth of the missed menstrual period.
D000028:Abortion, Induced; D000022:Abortion, Spontaneous; D005260:Female; D006470:Hemorrhage; D006801:Humans; D008598:Menstruation / Q000502:physiology*; D011247:Pregnancy; D011248:Pregnancy Complications
ABORTION; MENSTRUATION/physiology; PREGNANCY/hemorrhage