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J. Wessels

University of Pretoria

5

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14

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The impact of health programmes to prevent vertical transmission of HIV. Advances, emerging health challenges and research priorities for children exposed to or living with HIV: Perspectives from South Africa

2019 South African Medical Journal
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A Comprehensive Conceptual Framework for Assessing the Impact of Agricultural Research and Development

2001 Agrekon
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DOES RESEARCH AND DEVELOPMENT PAY - THE CASE FOR PROTEACEAE

1998 Agrekon
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Whereto with the South African ostrich industry? Its problems, challenges, and future

1998
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Socio-eco-nomic impact of the Proteaceae Development and Transfer Program

1997
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