Around 10 to 15 percent of couples in the world are infertile, according to Schou.Added to that are single women nearing the end of their childbearing years who still want to have a family.

• 休乌称，全球大约有10%25到15%25的夫妻无法生育，而且快要超过生育年龄的单身女性也想有个家庭。