Ultra-Sound Shown if for Twins

In Bernard Nathanson's book, The Hand of God, he comments on one benefit of ultrasound.

"A study in the New England Journal of Medicine provided evidence of how potent this technology is. About ten years ago, and article in the journal reported that when ten pregnant women came to an abortion clinic and were shown ultrasound pictures of the fetus before the abortion, only one went through with the abortion. Nine left the clinic pregnant." (p. 126)

The video below shows some Missionaries of the Eucharist talking with Monsignor Reilly. Monsignor Reilly developed the Helpers of God's Precious Infants method of praying outside of places that perform abortions.

You have to wait until you get to the 52nd second of the video to hear that a particular abortion place only shows a girl an ultrasound if she's having twins. This is to prove to her that she's having twins since it would cost more for her to have an abortion. This is all to say that this place would not show a girl the ultrasound if she were not having twins.