Dyfyniad APA

Marshall, A. (2007). Ethical challenges in study design and informed consent for health research in resource - poor settings. World Health organization.

Dyfyniad Arddull Chicago

Marshall, A. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource - Poor Settings. Geneva: World Health organization, 2007.

Dyfyniad MLA

Marshall, A. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource - Poor Settings. World Health organization, 2007.

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