Sel J. Hwahng, PhD (they/them/their) is assistant professor in the department of Women's and Gender Studies, Health and Sexuality track, at Towson University. They are also pursuing an Sc.M. degree in Cardiovascular Epidemiology at Johns Hopkins University, Bloomberg School of Public Health. Their current research focuses on women of color and LGBTQ nutritional and cardiometabolic health disparities utilizing social, behavioral, and epidemiological methods. They also lead an ontological-based leadership course at higher education institutions. They are a recipient of grants, awards, and fellowships from organizations/institutions such as the National Institute on Drug Abuse, National Institutes of Health, American Public Health Association, International AIDS Society, Association for Women in Psychology, and American Heart Association. Publications include over 30 articles and book chapters in peer-reviewed journals and edited volumes. Dr. Hwahng is alsoeditor of the book series Global LGBTQ Health in which this volume is featured.

Michelle R. Kaufman, PhD (she/her/hers) is associate professor in the Department of Health, Behavior & Society and the Department of International Health at the Bloomberg School of Public Health at Johns Hopkins University in Baltimore, Maryland, USA. She is a social psychologist by training. Dr. Kaufman's research focuses on the social determinants of health, particularly the role of gender and sexual identity. She has spent over 20 years studying sex, gender, and sexuality as predictors of health disparities in more than 12 countries using mixed and interdisciplinary research methods. Her work is focused primarily in low- and middle-income settings and has been funded by the NIH, USAID, CDC, Fulbright, Gates Foundation, and Bloomberg Philanthropies. Currently she leads the Data for Health Gender Equity Unit, an initiative focused on improving health data systems in 40+ low- andmiddle-income countries to ensure people of all genders are counted in health data.