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[SUMMARY] The document outlines a social and health project in Portugal that aims to promote interpersonal relationship skills and sexual health education, especially around issues of sexuality, safety and HIV/AIDS. The project involves research, implementation of educational programs, and evaluation work in schools, prisons, psychiatric hospitals and other closed institutions. It is part of an international network and seeks to influence health promotion policies through evidence-based studies and monitoring of behaviors among Portuguese children and adolescents.