Primary and secondary substance use in the Western Cape Province of South Africa: A mathematical modelling approach
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2019 ◽
Vol 6
(1)
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pp. 1641175
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2017 ◽
Vol 34
(5)
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pp. 529-547
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2013 ◽
Vol 21
(3)
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pp. 236-243
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2009 ◽
Vol 7
(2)
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pp. 239-252
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2003 ◽
Vol 27
(3)
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pp. 69-90
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