Oli at Superdolly has a review of Better Ten Graves than One Extra Birth exploring the effects of China's One-Child Policy. The book was not written by pro-life activists or even people sympathetic to the pro-life movement, but examines the issue from a human rights perspective and apparently comes to similar conclusions.
I have always regarded the pro-life movement as part of the human rights movement, since the right to life is the first and most fundamental human right. Moreover, the more vulnerable a human being is, the stronger his or her legal protection must surely be, as the slogan of my own blog states.
UN Convention on the Rights of the Child: “The child by reason of his physical and mental immaturity, needs special safeguards and care, including appropriate legal protection, before as well as after birth”.