The Integral Health Coordination Program (Programa de Coordinación en Salud Integral or PROCOSI) is a network of 24 Bolivian NGOs that coordinates and implements programs to improve the health of the population in need. In 2000, PROCOSI received funding from the USAID Mission in Bolivia to institutionalize a gender perspective in the reproductive and sexual health services offered by the PROCOSI network.  PROCOSI and the Population Council’s Frontiers in Reproductive Health Program (FRONTIERS) took advantage of this opportunity to evaluate the effects that interventions had on clinic clients and their partners, and to estimate the costs of incorporating a gender perspective into service delivery.  The project aimed to answer four questions: 1) Can health organizations operationalize a gender perspective? 2) Does the incorporation of a gender perspective have a positive effect on the health and well being of the users and on their relationships with their partners? 3) Does this have an effect on the demand for sexual and reproductive health services? 4) Which would be the cost of incorporating a gender perspective into the delivery of reproductive health services?