University, Carl Sagan of Cornell, John Tyler Bonner of Princeton, Nobel Prize Winner George Beadle, President of the University of Chicago, and Donald F. Kennedy of Stanford University, formerly head of the United States Food and Drug Administration. This was followed by the passing of a resolution by the American Association for the Advancement of Science (AAAS) in the fall of 1972 that stated, in part, "the theory of creation ... is neither scientifically grounded nor capable of performing the rules required of science theories". The United States National Academy of Sciences also passed a similar resolution in the fall of 1972. A statement on evolution called "A Statement Affirming Evolution as a Principle of Science." was signed by Nobel Prize Winner Linus Pauling, Isaac Asimov, George G. Simpson, Caltech Biology Professor Norman H. Horowitz, Ernst Mayr, and others, and published in 1977. The governing board of the American Geological Institute issued a statement supporting resolution in November 1981. Shortly thereafter, the AAAS passed another resolution supporting evolution and disparaging efforts to teach creationism in science classes. To date, there are no scientifically peer-reviewed research articles that disclaim evolution listed in the scientific and medical journal search engine PubMed. Project Steve The Discovery Institute announced that over 700 scientists had expressed support for intelligent design as of February 8, 2007. This prompted the National Center for Science Education to produce a "light-hearted" petition called "Project Steve" in support of evolution. Only scientists named "Steve" or some variation (such as Stephen, Stephanie, and Stefan) are eligible to sign the petition. It is intended to be a "tongue-in-cheek parody" of the lists of alleged "scientists" supposedly supporting creationist principles that creationist organizations produce. The petition demonstrates that there are more scientists who accept evolution with a name like "Steve" alone (over 1370) than there are in total who support intelligent design. This is, again, why the percentage of scientists who support evolution has been estimated by Brian Alters to be about 99.9 percent. Religious Creationists have claimed that they represent the interests of true Christians, and evolution is associated only with atheism. However, not all religious organizations find support for evolution incompatible with their religious faith. For example, 12 of the plaintiffs opposing the teaching of creation science in the influential McLean v. Arkansas court case were clergy representing Methodist, Episcopal, African Methodist Episcopal, Catholic, Southern Baptist, Reform Jewish, and Presbyterian groups.