Source:http://linkedlifedata.com/resource/umls/id/C0000832
MSH: Premature separation of the normally implanted PLACENTA from the UTERUS. Signs of varying degree of severity include UTERINE BLEEDING, uterine MUSCLE HYPERTONIA, and FETAL DISTRESS or FETAL DEATH.,NCI: The separation of the placenta from the maternal uterine attachment when it occurs after the twentieth week of the pregnancy.