title: Methodological and ethical issues in research with street children.
authors.affiliation: Department of Psychology, Federal University of Rio Grande do Sul, Brazil.
authors.forename: C S
authors.initials: CS
authors.lastname: Hutz
authors.forename: S H
authors.initials: SH
authors.lastname: Koller
mesh_terms: D000293:Adolescent; D002648:Child; D004995:Ethics, Professional; D005260:Female; D018453:Homeless Youth / Q000523:psychology*; D006801:Humans; D008297:Male; D012107:Research Design; D012494:Sampling Studies