RT Book, Section A1 Cunningham, F. Gary A1 Leveno, Kenneth J. A1 Bloom, Steven L. A1 Dashe, Jodi S. A1 Hoffman, Barbara L. A1 Casey, Brian M. A1 Spong, Catherine Y. SR Print(0) ID 1160774558 T1 Abortion T2 Williams Obstetrics, 25e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259644320 LK obgyn.mhmedical.com/content.aspx?aid=1160774558 RD 2024/04/24 AB In the early months of pregnancy spontaneous expulsion of the ovum is nearly always preceded by the death of the foetus. For this reason the consideration of the aetiology of abortion practically resolves itself into determining the cause of foetal death. In the later months, on the other hand, the foetus is frequently born alive, and other factors must be looked for to explain its expulsion.—J. Whitridge Williams (1903)