Eric Walker added China Uses DNA to Track Its People, With the Help of American Expertise - The New York Times to a number of topics

Eric Walker added a number of topics to Geneticists, and added Geneticists to Biologists and Genes, genetics and epigenetics

Eric Walker added China Uses DNA to Track Its People, With the Help of American Expertise - The New York Times to Kenneth Kidd, and added Kenneth Kidd to Geneticists