Informed consent: IX. Effects of the withdrawal clause in longitudinal research.
D000163:Acquired Immunodeficiency Syndrome; D035841:Behavioral Research; D030881:Disclosure; D004493:Education; D017041:Ethics Committees; D028744:Ethics Committees, Research; D006266:Health Education; D006801:Humans; D007258:Informed Consent; D011584:Psychology; D012106:Research; D012107:Research Design; D019529:Sexuality; D013334:Students; D014838:Volunteers
Biomedical and Behavioral Research