Survival of the second twin 37 days after abortion of the first.
D000022:Abortion, Spontaneous; D001034:Apgar Score; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007752:Obstetric Labor, Premature / Q000517:prevention & control; D011247:Pregnancy; D013997:Time Factors; D014427:Twins; D014429:Twins, Dizygotic