Source: Children of God for Life, December 15, 2008 - In the section titled, The use of human “biological material” of illicit origin , the Vatican noted: “Therefore, it needs to be stated that there is a duty to refuse to use such “biological material” even when there is no close connection between the researcher and the actions of those who performed the artificial fertilization or the abortion, or when there was no prior agreement with the centers in which the artificial fertilization took place. ...