For a different perspective, there is an interesting "fact" sheet, at www.plannedparenthood.org.I know each site is biased, but they do have some cited figures which include the fact that 1.5 percent of all abortions in the US are D&X, which if I understand it right, is the medical term for PBA. They also list some of the reasons why the decision to terminate may come so late.
Thanks,
kat