The Wall Street Journal | United States National Research Council | National Research Council | Sex and the City | Sex Pistols | academic journal | scientific journal | journal | Commonwealth Scientific and Industrial Research Organisation | Nature (journal) | research | Agricultural Research Service | Academic journal | Office of Naval Research | National Journal | St. Jude Children's Research Hospital | Ladies' Home Journal | Cancer Research UK | sex | Science (journal) | Medical Research Council (UK) | Medical Research Council | Yale Law Journal | Getty Research Institute | Research Triangle Park | Library Journal | Industrial Research Institute | Australian Research Council | same-sex marriage | National Center for Atmospheric Research |
Klein has written over 100 articles for publications such as The Journal of Sex Research, San Francisco Medicine, The Journal of Homosexuality, and Contemporary Sexuality, as well as Parents, Playboy, American Baby, Modern Bride, and New Woman.