Deborah KowalDeborah Kowal is executive editor and a coauthor of Contraceptive Technology, now in its twentieth edition with more than two million copies in print. As a medical writer specializing in women's reproductive health, she has consulted with the S Centers for Disease Control and Prevention, the World Health Organization, and other organizations. For more than thirty years, she wrote the Public Health section in the World Book Encyclopedia's Science Year Annuals. Read More Read Less