I think it might be a simple misunderstanding, but one can never be certain :).

I believe we agree we haven't seen a valid citation for "the source in which 'x' came from in 'x%'" for this stat on the site. I hope the two of us also agree this is not the point I was disagreeing with.

Where I'm currently lost is why a demography textbook, which was a different citation in the same section, must be unable to explain dead newborns need not be counted in such a statistic on the basis the textbook was not also the source of the specific percentages displayed? That'd be like saying a statistics textbook can't explain how the median can be less than the mean on the basis it wasn't also the source for the numbers displayed.