scholarly journals Primary and secondary substance use in the Western Cape Province of South Africa: A mathematical modelling approach

2020 ◽  
Vol 6 (1) ◽  
pp. 1736846
Author(s):  
Josiah Mushanyu ◽  
Farai Nyabadza ◽  
Phillip Mafuta ◽  
Lateef Ahmad
2018 ◽  
Vol 23 ◽  
Author(s):  
Liezl Joubert ◽  
Johanita R. Burger ◽  
Ilse Truter ◽  
Martie S. Lubbe ◽  
Marike Cockeran

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