Teenagers and questionnaire research.
D000293:Adolescent; D035841:Behavioral Research; D003219:Confidentiality; D003267:Contraception; D017041:Ethics Committees; D028744:Ethics Committees, Research; D005195:Family Relations; D035082:Federal Government; D005260:Female; D006076:Government; D033161:Government Regulation; D006801:Humans; D007258:Informed Consent; D007603:Jurisprudence; D033242:Minors; D033282:Parental Consent; D018907:Privacy; D012106:Research; D019529:Sexuality; D012926:Social Control, Formal; D020458:Third-Party Consent; D014930:Women
Biomedical and Behavioral Research; Legal Approach