Regina Maria Barbosa, M.D., Ph.D. M.P.H. is Vice President and Director of the largest AIDS NGO in Brazil – ABIA – and Professor and Senior Researcher at the Population Studies Center (NEPO) at the University of Campinas (UNICAMP), São Paulo, Brazil. Dr. Barbosa is a nationally recognized leader in sexual and reproductive health and rights research among women in Brazil. Her research over the past 32 years has significantly contributed to understanding the role of gender and power in the sexual relationships, women’s access and right to access various forms of contraception (e.g., female sterilization, emergency contraception, female condom), and investigating the socio-structural barriers for women living with HIV to access these contraceptives. Dr. Barbosa has pioneered this work among women living with HIV/AIDS, adolescents, and lesbians.