Marshall, P. L. (2007). Ethical challenges in study design and informed consent for health research in resource-poor settings. World Health Organization.
Chicago-viite (17. p.)Marshall, Patricia Loomis. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource-poor Settings. Geneva, Switzerland: World Health Organization, 2007.
MLA-viite (9. p.)Marshall, Patricia Loomis. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource-poor Settings. World Health Organization, 2007.
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