Social-demographic patterns and trends in risky behaviors of indus in the city of Santos, São Paulo, Brazil: a comparison between 1992 and 1994 - Turienzo, G.; Burattini, Marcelo Nascimento; Bueno, Regina; Carvalho, H. B.; Mesquita, F.; Massad, Eduardo; Azevedo Neto, Raymundo Soares de (International Conference on The Reduction of Drug Related Harm, 1997)