TY - GEN TI - Ethical considerations in biomedical HIV prevention trials: UNAIDS/WHO guidance document SN - 9789291736256 U1 - 614.547 PY - 2007/// CY - Geneva PB - WHO / UNAIDS KW - BIOETHICS KW - BIOMEDICAL RESEARCH KW - HIV infections - prevention and control KW - Intervention studies ER -