TY - BOOK AU - World Health Organization TI - Ethical challenges in study design and informed consent for health research in resource - poor settings SN - 9787241563383 U1 - W20.5 PY - 2007/// CY - Geneva PB - WHO KW - World Health Organization KW - Research design KW - Informed consent KW - Ethics,Research N2 - Ethics,Research, Informed consent, Research design, World Health Organization ER -