Dr. John Zhang, founder of the New Hope Fertility Clinic in New York City, is speaking out about the crisis of infertility facing women in America.

Dr. Zhang spoke recently at Fortune’s Brainstorm Health conference in San Diego, California. He said, “Ninety percent of couples who need IVF give up because it is costly and they don’t have an insurance company who covers the treatment.” Even if they have the ability to pay, IVF is still considered experimental in the U.S. and all the funding that has gone into IVF research thus far has been privately funded.

One of the more controversial and experimental procedures is this “three-parent baby” that Dr. Zhang addresses in the video below. We first told you about the procedure, also called a “mitochondrial transfer” back in September 2016.