With a public Health perspective, our research program is located at the intersection of sexual and reproductive health, and primary and specialized health service delivery. We follow a multidisciplinary approach including social sciences (sociology, social psychology, demography, history), epidemiology and clinical medicine (Internal medicine, Obstetrics and gynecology). Our research focuses on Health behaviors (Contraception, Sexuality), health service access and utilization (sexual and reproductive health, chronic disease and prevention) and on the history of science and scientific and professional knowledge related to these disciplines and practices. We conduct population based research as well as work on specific groups of the population (youth, MSM, transgender people, military population, senior population, people living with disabilities etc…). We specifically focus our attention on social inequalities, including gender inequalities as well as on professional norms and practices.